Are alyssum, nemesia and euphorbia all deer resistant?
Yes, alyssum, nemesia and euphorbia are all considered deer resistant.
Hi How do you deadhead a bocopa? Pick off the flowers? That would leave a naked stem or do they rebloom on the stem? Should I shorten the stem to 3" or 4". How do you deadhead Alyssum? Thank you for your help.
https://www.gardeningknowhow.com/edible/herbs/bacopa-plants/growing-bacopa-plants.htm
https://www.gardeningknowhow.com/ornamental/flowers/alyssum/growing-sweet-alyssum.htm
A Bacopa can be pinched back to form a dense base.
When the flowers of Alyssum fade or the plant becomes leggy, clip back the entire plant to 4 to 5 inches in height.
I am very new to gardening, and have been working with a few small perennial gardens. I planted a Basket of Gold Alyssum plant, currently about 8-10 inches across, and it has only seemed to grow worse for the wear as it's been in my garden bed (maybe 4 weeks now). I believe the plant had mostly flowered by the time I purchased and planted it, and I recently cut out all the dead stems from the flowers. It is in full sun the majority of the day, and we have quite sandy soil that I supplemented with planting additives to help our new garden. I have read all about their care, and several sources suggested that I cut back the foliage about halfway down to encourage a second bloom. However, when I when to investigate, I noticed the underside of the plant appears to be dried, yellowed, and dead entirely. I'm unsure if this is the normal habit of this plant after the blooming season? Possibly just the dropping of spent leaves? If anyone has some advice on how to care for this plant as well as how to help it flourish, I would be so grateful!
Yes, cutting back can help vitalize the plant.
This link below gives you a great review of the care needed.
https://www.gardeningknowhow.com/ornamental/flowers/basket-of-gold/growing-basket-of-gold.htm
I planted alyssum a few years ago and have enjoyed it, but it is time for a change. I have pulled most of it but it comes back. Other then pulling the new growth how can I rid my garden of it?
It is likely that you have alyssum seeds in your soil and they will continue to pop up when conditions are right for several years. Make sure you don't allow this year's plants set seed! I suppose a pre-emergent herbicide would suppress germination of those seeds but that seems excessive given how easy it is to pull/hoe the plants when they appear. It's up to you.
Ballon flower; should I dead head? Will it bloom again?
Yes, this will help them.
https://www.gardeningknowhow.com/ornamental/flowers/alyssum/growing-sweet-alyssum.htm