HOW do I stop my Spinach seedlings from bolting????
I am having a problem with my small Spinach plants.
I start them in my basement (68 degrees 24hrs. a day) under 4" shop light along with lettuce, broccoli & swiss chard.
The sprout fine, appear to be growing well, and then all of a sudden they go to flower/seed. This happens right after the first 2 sets of real leaves grow. It happened now and it happened back in the spring. Also, in the spring I direct seeded some spinach in the garden and the same thing happened. BTW - The lettuce plants + others are thriving under the shop lights, as they did this past spring.
Am I doing something wrong? The spinach seedlings that I purchase at the garden centers grew just fine in the spring. Both the seeds and plants I wound up purchasing were Bloomsdale Long Standing.
Please help. It is impossible to find seedlings this time of year at the garden centers and I want to eat spinach salads this fall.
Thank you in advance,