I have dead headed my alstroemerias by pulling the stems out from the ground but the non flowering stalks are very floppy and laying on the ground. Is it ok to cut them back and if so by how much?
No point in cutting them back, they only flower on the ends. Are you sure the floppy ones are actually budding stems and not just older ones that haven’t flowered. Have you taken a photo?
Gardening on the wild, windy west side of Dartmoor.
They are definitely non flowering stems. Just wanted to cut back to tidy them up so I can put in a few bedding plants to fill up spaces now the alstroemerias have finished their main flowering.
No, the OP says they’re floppy and laying on the ground, they don’t work like that, those stems do no good to the plant. In fact in reverse, pulling them off triggers the new growth. They are not like daffodil or tulip bulbs which do need the green left to feed the bulb for next year.
Gardening on the wild, windy west side of Dartmoor.
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Have you taken a photo?
They are not like daffodil or tulip bulbs which do need the green left to feed the bulb for next year.