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If you can't get water onto the soil because the growth is so tightly packed, it's probably time to risk dividing the plant. They prefer to be potbound, and the roots don't really like disturbance but at the size you describe, it sounds like it needs to be done, and spring is the best time to do it. Make sure the soil is nice and damp and turn the plant out ...


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I've sprouted Mary thistle indoors before, in my kitchen's south windowsill, but only to transplant it outside after it got to a few inches tall. That works fine. However, my observation and guess is you would probably want growlights to get a good, healthy plant with flowers. If you're just growing it for microgreens or something, then growing indoors is ...


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It is not easily done. The thistles I see usually grow in full sun which can be about 120,000 lux outside at noon. Inside illumination ranges from 100 to 500 lux, a vast difference in the light levels needed for growth and flowering. You would need to supplement the light levels with an artificial light system of some sort. High pressure sodium or metal ...


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Suggestion; throw it away. Consider a blooming indoor azalea like a long lasting cut flower arrangement. It will be cheaper to buy another one next year instead of buying plant lights , etc, and trying to get it to bloom again next year. I live in azalea country and even here planting a florist azalea outside,it is a challenge to get them to bloom well the ...


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Top insects are thrips: https://www.rhs.org.uk/advice/profile?pid=876 and will be causing some damage, other insect is a psocid https://en.wikipedia.org/wiki/Psocoptera and should not be a problem for the plant.


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