My coleus sprouted eight weeks ago. They still have only the two baby leaves, and have not gotten bigger nor gained their true leaves. I have tried changing the amount of sun and watering a little less, neither of these worked, and now I am down to 4 sprouts from 7. Should I ditch the lot and start again? I started them in jiffy pellets in a covered container and removed the cover after they sprouted, which was actually considerably faster than expected.
Certified GKH Gardening Expert
Coleus seedlings can be slow growing, but they should begin to grow faster if they have the right conditions. They may be too cold- try putting them in a warmer spot but also give them plenty of light. You could also try adding a bit of fertilizer.
I tried putting them directly under a solar tube for extra light and warmth. but it dried them out too fast. that is how
I lost two of the sprouts. They are near a south facing window for light now.
thank you. did try fertilizing about three weeks ago, but still no change at all. it is a steady 76 degrees Fahrenheit in here, is that too cool?