The December Garden - Pineapple Sage

At first glance, this pineapple sage looks completely brown and bare.

Well, this doesn't look very pretty -- at first sight.

Our gardening zone is 6-7. Pineapple sage is reportedly perennial in zones 9-11, maybe zone 8 if you're lucky. So I do not have any high particular hopes of perennial sage gracing me with its presence next year.

And yet, if you look a little closer, there are a couple of beautiful scarlet blossoms still holding on long after their compatriots have given up the ghost.

Up close, there are still a few fragile and beautiful blossoms defying the odds. I love perseverance in the garden.

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The Late October Tennessee Garden

Dear Readers,

Apologies for my long absence.

I was traveling for three weeks in September-October and then needed to take care of some business (the kind that pays the bills) before I get back to blogging. Mea culpa. 

As for the travels, I look forward to sharing photos and thoughts on Spanish and French gardens in upcoming posts.

But for now, I thought it might be fun to share some photos of the garden in October:

Sweet Alyssum never really got established in the hot spring or early summer, but it has done better in the cooler fall weather - though not as well as last year. I am thinking about trying a heavy winter overseeding to see what happens.

Autumn Joy sedum. Since it's my first time growing this kind of sedum, I'm not sure why some leaves are yellowing and whether it's a real problem or just a cosmetic issue.

A reblooming azalea. It was here when we bought the house, so I don't know the variety. This one has Eastern exposure.

Another reblooming azalea. I like this one better! Unfortunately, since I didn't plant it, I don't know the name of this one either. There are about five identical azaleas on this (North) side of the house.

Western exposure - French marigolds, zinnias and a recently planted Vitex agnus-castus (a.k.a. Chaste Tree or Monk's Pepper)

A close-up on the leaves, flowers and seeds of the Vitex. The plant is supposed to be a fast-grower to 15-25 fee tall and wide. I have high hopes, but am trying to temper my expectations. The tree is reportedly deciduous, but still has mostly green leaves even now in early November (a couple of weeks after this photo was taken)

Blue Star Creeper (strangely the plant seems to have about five Latin names). I planted Blue Star Creeper in a Western-facing landscaped bed last year. It blooms prettily in the spring, but gets baked into oblivion in the summer, returning in the autumn. I thought I'd see how it might do on the East side of the house, so I transplanted this patch in September. It seems to be settling in nicely, but I'm concerned as to whether low winter temps will damage the plant. I'll post updates to let you know.

It doesn't look like much, but this part of the buffalo grass patch that I planted back in August. It might be hard to tell from this photo, but I think all the plugs have survived and some have started to spread nicely, but unfortunately they didn't really get a good enough toehold before the weather turned cool, which I believe slows their growth and quickly makes them go dormant. If I were ever to plant buffalo grass again, I would try to plant it in June I think to give the plants a whole summer of robust growth. But I will try to keep the patch weeded this winter in the hopes that next spring when it warms up the buffalo grass will form a thick enough groundcover to exclude most weeds.

In late October, the backyard still was full of zinnia and French marigold blooms. Pretty much all day long, especially on sunny days, the flowers were alive with bees and butterflies skipping from bloom to bloom. It was a beautiful sight!

Heavily-blooming camellia, Eastern exposure. We didn't get any blooms at all on this plant last year. I scattered some acid fertilizer beneath it in late summer / early fall. Perhaps that helped? I really like these flowers. Unlike the one red camellia bush that bloomed last year (but so far just has buds this year), the white petals gently fall off and decorate the ground so that it looks as though there is a patch of snow beneath the plant. And as you can see, the 'flowers' have a sort of pinkish tinge. Just lovely! Sadly, since it was here when we bought the house, I can't identify the variety. Maybe Winter's Snowman or Snow Flurry?

Another shot of some of the blooms on the (pinkish-)white camellia.

A nearby pink camellia has been blooming as well. Not as many flowers, but these are still beautiful! Again, this was here when we bought the house, so not sure of the variety. Perhaps Pink-a-Boo or Kanjiro?

The cherry tomato vines (Riesentraube and Sungold) were still covered with fruit in late October. (Of course the ground below them was also littered with fallen fruit.) Since our HOA requires a lawn with few weeds and since we have not been able to achieve that without hiring someone to spray chemicals and since I don't feel comfortable growing food alongside those chemicals, this will probably be the last tomato plant we grow for a while.... :(

I think the cosmos plants bloomed better in October than they did in the spring or summer!

This is the Eastern side of the house, where I had a bed of English marigolds (Calendula officinalis) during the summer. They have, ahem, reseeded rather heavily and sprouted prodigiously in the fall weather. I wasn't a huge fan of the English marigolds, so I'm not so thrilled about the heavy reseeding. But I imagine that many of these plants will die from the cold before they have a chance to create a third-generation of English marigolds! I have uprooted some, but I am leaving others just to see how much cold weather they can withstand.

This was one of the few English marigold plants that I left in the ground. I had uprooted most in August/September when they stopped blooming and became infested with leafhoppers. Clearly, the plant has bounced back and begun blooming in the cooler weather. 

Hardy Blue Plumbago apparently turns a beautiful shade of purple in the autumn. Just another bonus to one of my favorite perennials!

I was worried that everything would be dead in the garden after three-plus weeks of neglect, so it was uplifting and heart-warming to see this gold-and-orange patch of French Marigolds (Tagetes patula). Just gorgeous! The butterflies and bees were all over these flowers. And I think that there were quite a few moths as well, including perhaps a hummingbird moth - the first one I've ever seen in Tennessee! A wonderful autumn sight. Definitely a plant that I would recommend - if the seedlings could survive in the drought and 100+ temps we had this past summer and mature into these types of flowering plants, then I'm pretty sure they can almost anything the Southeast can throw at them. Highly recommended!

The okra plant that I transplanted in September and highlighted in a blog post is still alive. I don't think it was warm enough while I was gone for the plant to produce any mature pods, but it was still nice to see it standing.

Pineapple Sage (Salvia elegans) looked miserable all summer - leaves curled in the drought, I thought it would die despite the supplemental water I gave it. By September, with cooler temps, the planted looked healthier, but I didn't expect it would double or triple in size while I was gone and throw up these sprays of red flowers. What a nice surprise! I think these flowers are supposed to attract hummingbirds, but sadly I saw only a single hummingbird make a brief visit. Maybe you need a whole patch of these plants to catch a hummingbird's attention?

Just another perspective showing the size and shape of the Pineapple Sage.

One more shot of a butterfly visiting some zinnia flowers. (Notice the smaller dun-colored skipper butterfly in the upper right hand corner of the photo. I didn't intentionally try to capture both butterflies in the frame, but there were so many butterflies flitting about that I just happened to get lucky.) I love butterflies and I love zinnias. Fortunately, they also seem to love each other.

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Hallelujah! The Rains Have Come!

The rains have come at last. The temperatures have fallen to manageable levels. In fact, the high temperature was only 74F (23.3C) on Thursday! Incredible. Our neighborhood actually missed out on some of the rain that fell in the region - particularly to the South in Alabama - but I still think we must have ended up getting close to 2 inches of rain this past week.

The rain and cooler temperatures have had a miraculously restorative effect on the garden just when I was close to giving up hope.

Remember the twisted pineapple sage and the withered zinnia that were already looking drought-ravaged back in late June before the record heat wave?

Here's how they have bounced back with the cooler, wetter weather:

Pineapple sage, back from the dead

Zinnia, twisted no more

The rest of the garden is looking good too. Here are some of the plants that caught my eye in the front Eastern bed:

Ajuga may have been hanging tough in the heat, but it seems to be loving this wetter weather. It is even threatening to overgrow its plant tag!

The heat and the drought scorched the older leaves on this Aronia arbutifolia (red chokeberry) seedling, but the new leaves look green and healthy.

I was worried about clematis integrifolia (a bush-type clematis) after the older stems flopped over and the leaves curled up. But as you can see, fresh new foliage has emerged from the center of the clump. A hopeful sign!

Over in the vegetable garden...

I still haven't gotten any beans off these Emerite pole beans yet, but the new leaves look gorgeous and untouched (so far) by any of the pests that chewed holes in the older leaves. I haven't sprayed at all. Maybe the predator insects have the upper hand now?

I should be harvesting okra by now, not staring down at tiny seedlings, but at least a couple of these Emerald okra seedlings are looking healthy and starting to put on a little bit of growth.

This hardy hibiscus plant is squeezed into the vegetable garden alongside cucumbers and tomatoes. I think it's going to bloom in the next day or two. The beautiful blossoms only last one day. I'll try to take a photo for you when it happens.

And two final shots from the back (Western) beds:

Cosmos had been looking tired in the heat. Some of the plants had actually turned brown and died, others were just resting and biding their time. Now that the rains have come, this one is back in bloom.

This is the gaura I didn't trim. I'm glad that I procrastinated so that I could get this photo of the stems laden with water droplets just moments after a strong rain shower.

I am so happy to have rain. I hope that all the other gardeners and farmers struggling with drought this year will soon receive the blessing of sweet, cool rain dousing their troubles and washing away their worries.

The Heat is On! Which plants can survive a hot, dry Tennessee summer?

Pineapple Sage (Salvia elegans), not so drought-tolerant after all

The other night, I heard that nearby Franklin, Tennessee has started requesting voluntary water conservation from its citizens.

There hasn't been much news about the drought yet (despite the fact that Tennessee's rivers are at or near historic lows this year), but I can tell you that it is hot and dry.

We're talking mid-90s Fahrenheit (~35 Celsius) every day with high pressure parked over the region and no rain in sight.

Lawns up and down the street are turning brown, despite the fact that most people are watering daily. (I find lawn watering awfully wasteful, so I use our irrigation system a few days a week and feel guilty even using it that much. So our lawn is browner than most.)

But I don't care much about lawns. If I could afford it, if our HOA would allow it and if I thought it wouldn't adversely affect retail value, I'd rip it all out and replace it with landscaping with greater ornamental value and greater wildlife value for bees, butterflies, birds and other critters.

But that raises the pertinent question of what plants can survive the extremes of a mid-Tennessee summer. And I can tell you right now that it's not looking pretty.

Take the Pineapple Sage (Salvia elegans) at the top of this post. I thought this was supposed to be heat and drought tolerant, full sun plant. Apparently, I was misinformed. On closer research today, I discovered from Floridata that pineapple sage needs regular watering for best growth and flowering. Apparently it can sometimes survive a drought by wilting and dropping its leaves, but it won't thrive in drought conditions.

(Floridata also says that pineapple sage is best suited for zones 9-11, so I really goofed when I bought the plant for my zone 7 garden!)

What about zinnia? The University of Florida extension service describes zinnias as being a drought-tolerant annual. Floridata (one of my favorite information sources, despite the fact that I don't live or garden in Florida) describes zinnias as being "quite drought tolerant" plants that do best in full sun. The plant shown below must not have gotten the memo, as it is looking cooked. (I will note that now that I am scouring plant descriptions specifically looking for drought tolerance, I notice that many merchants, such as Burpee, emphasize that zinnias are heat tolerant without mentioning drought tolerance. Maybe zinnias are moderately drought tolerant, but do better in hot and wet places?)

Zinnia

How about Russian Sage? As you can see below, the plants are still rocking away and producing a profusion of blooms that attract a happy chorus of buzzing bees all day long.

Russian Sage (Perovskia atriplicifolia)

And yet, the picture isn't quite as pretty just a bit further down each plant where the leaves are yellowing, browning, turning yellow and falling off. What's the reason? Various Internet sources suggest either (a) too much water, (b) too little water or (c) shedding leaves as normal behavior. The mighty Missouri Botanical Garden says that Russian Sage (Perovskia atriplicifolia) tolerates clay soil, dry soil and drought, which pretty much precisely describes its environment. And yet, there's no mention of yellowing leaves...

Russian Sage (Perovskia atriplicifolia), yellowing leaves

Well, let's not make this post all doom and gloom! The good news is that after weeks of teasing with nothing but foliage, the French Marigolds (Tagetes patula) have started to burst into bloom. True, the 'Sparky Mix' seeds I bought from EverWilde were supposed to grow into plants 12-inches tall, whereas the actual plants are less than half that height, but the flowers are endearingly luminous.

French Marigold (Tagetes patula)

Some of the leaves Natchez crape myrtles are looking a little limp, but the trees themselves are covered in blooms. I think we have many more flowers this year than last year.

Natchez Crape Myrtle

And Purple Cone Flower (Echinacea purpurea) is still going strong, to the delight of bees and butterflies. (At least, I think these are butterflies, operating on the layman's assumption that moths land with wings flat and butterflies fold their wings...) University of Maryland's Cooperative Extension describes purple cone flower as "quite drought tolerant," while University of Delaware's Extension service describes Echinacea purpurea as being "very drought resistant." Interestingly, definitions of drought tolerance may differ here in the U.S. versus across the pond in Europe. I found one U.K. site that says Echinacea needs water at least weekly in full sun. I'm guessing that is the case, as a couple of my Echinacea are looking a little drought-stressed (though they're still getting by much better than the pineapple sage or the zinnia). Perhaps in very hot areas with drought risk it makes sense to ignore the usual full sun recommendation and plant Echinacea where it will get some afternoon shade?

Echincea purpurea, standing tall for now despite the drought

We have four or five of the Natchez crape myrtles in full sun, as well as an unidentified lavender crape myrtle that gets less morning sun, though it does get plenty of solar radiation in the afternoon. This specimen is thriving, growing vigorously and not exhibiting any signs of drought stress. Of course, it also has hardly any flowers at this point, but the one bunch of lavender flowers that has opened looks lovely and has a light, sweet fragrance.

Lavender crape myrtle flowers

 Over to the front of the house (morning sun, afternoon shade), we find that Calycanthus floridus, also known as Carolina allspice or sweetshrub. Floridata says that Calycanthus likes moist soils, but can survive drought. I've been giving the plant a deep watering twice a week and so far it seems to be limping along with just a bit of leaf tip browning. The plant is native to the Southeastern U.S. and is supposed to have fragrant spring flowers. Obviously no flowers this year as this tiny plant (purchased through mail order) is just getting established, but I'm hoping I can nurture it through the drought so that I can enjoy its flowers next spring.

Calycanthus floridus, Carolina allspice, sweetshrub

Last but not least, here's a look at an Ajuga reptans that seems to have happily established itself in one of the shadier corners at the front of house. North Carolina State University (NCSU) includes ajuga on its list of drought tolerant plants, and this specimen certainly seems to be living up to its reputation, perhaps helped by the fact that it gets shade from about 10 a.m. onwards. It's not a particularly flashy plant, but I've definitely come to appreciate ajuga's shiny, classy foliage. I'm hoping it spreads into a sizeable groundcover, and I suspect that next year I'll be able to enjoy more of its blue flower spikes.

Ajuga reptans

That's all for now. I didn't include any photos (to keep this post at a somewhat manageable size) but I can tell you that the Autumn Joy sedum and the phlox paniculata (shown in the June 21) post are both doing fine. Both sedum and the phlox are on the NCSU list of drought-tolerant plants.

The drought has struck harder and earlier than usual in Tennessee, but we're certainly no stranger to droughts here and this experience has only reinforced my feelings on the importance of planting drought-tolerant or drought-resistant plants in any climate that is prone to water shortages. It seems to me this makes sense for two reasons: (1) You may enjoy watering (I do), but it's nice to know that your plants can survive for an extended period of time if circumstances prevent you from watering for one reason or another, and (2) with 300+ million people in the U.S. and 7+ billion people around the world, planting a landscape that needs lots and lots of supplemental water doesn't seem like such a swell idea.


Dear readers, I'd like to get your thoughts on a few questions:

1. Is your garden facing drought now or have you faced drought recently?

2. If you've encountered drought in your garden (now or in the past), what have turned out to be the toughest and most drought-tolerant plants in your experience?

3. How do you define drought-tolerant? Is a drought-tolerant plant in your garden one that only needs water once a week? Once a month? Never needs any supplemental water?

Thanks for reading! And let's hope for rain -- 'cause it's a good thing!

PS - Curious as to what's going on in the veggie garden? Check back in a couple of days for an update on the tomatoes, cucumber, pole beans, okra and more!