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My recently lush windowsill sweet basil has gotten very leggy after having been stressed by underwatering for at least several days (might have been as many as 10). While it was not dead when I got home, it was quite wilted and subsequently most of the old growth leaves were lost. It had begun flowering but never reached the "bolting" stage. Many of the stems are now woody near the base.

By careful but aggressive pinching, pruning and frequent watering, I was able to restore some life to the plant, but it is still a skeletal shadow of its former self. There has been substantial branching and new growth, but it has been producing only small leaves. Am I over- or under- fertilizing? Any chance it will come back or has it reached the end of its life cycle? enter image description here

The plants have been in this 18"L x 9"W x 9"D container about 8 months, transplanted from a grocery store purchased pot late last summer. Over the first 6 months, I pinched off top leaves regularly for light culinary use and harvested larger amounts from the top every few weeks for pesto.

The container sits in a south facing "greenhouse window" and gets 6-10 hours of good sunlight, depending on the season. The drying out/die-off happened in late January (it is now March). The room has good air circulation and is a pretty steady 70F.

The soil is Miracle Gro general purpose potting soil. After the plants dried out, I added a few pellets of Miracle Gro Shake and Feed fertilizer and watered heavily. About a month later (a week ago), I added a small amount (a cup or less) of doubly diluted liquid organic fertilizer.

The container has always been very thirsty and needed to be watered at least twice a week. I recently started using Hydrospike type automatic waterers with seeming great success to maintain a steady moisture level.

  • How long have you had the plants in that container? – Bamboo Mar 26 '18 at 12:56
  • What season is it now? Where is the sun in location to your window? – Graham Chiu Mar 26 '18 at 14:09
  • What do you mean by "over- or under- fertilizing"? Have you used fetilizer and if yes, which one? – Alina Mar 26 '18 at 17:07
  • Thanks for your comments. See the edited post for more info. – Jesse B Mar 27 '18 at 1:18
  • Do no overwater. Dry is bad, but overwatering after dry is worse. I like to see a dry basil plant to get water: you see live (so in minutes) that plant is restoring. Like GrahamChiu: time to start a new seedlings. – Giacomo Catenazzi Mar 27 '18 at 5:54
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Unless grown in the mediterranean regions basil acts as an annual plant and dies after a year. You can try and keep it alive by moving it inside in the winter but temperatures and lighting levels inside just don't meet its requirements for growth so it will suffer. And if it has already tried to form flowers and seeds it won't really return to vegetative growth where you can again harvest lots of leaves.

Just get a few seeds and start again for the next season. It's easy to grow from seed.

  • Thanks. I guess I'm just emotionally involved with keeping this one alive. – Jesse B Mar 28 '18 at 14:25

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