Got a shop bought onion here that has been left so long it has sprouted long green tops. What will happen if I plant it in compost?
cheers
it will grow more leaves and then go to seed.
Hey Rutters,I just did that, a lottie neighbour who grows great onions gave me 4 of an unusual Japanese one.I planted them and they are coming up great,I think they put a big stalk with a round seed ball at the top with seeds in,I am going to try amyway as he got the seeds from JapanXX Jeannine
I had a load of leftover onions from the harvest last year, and i planted then in a large tub for an unusual onion flower display later this year.
Onions are normally biennials - they flower the 2nd year using the stored energy in their bulb from the 1st year.
I left a couple of cloves of elephant garlic on my allotment when I first took it on, and they flowered, and I left them and they flower for me every year. The bees love them and I love them!
A lot cheaper than cultivated alliums!