They vary according to the cold, artjak - the colder it is, the deeper they go. Also, they can and do fly, so even if you change the soil they will still fly in.
When they become active - I've seen them as early as March.
Frosty, clear and bright here today, with the promise of more frost overnight.
The bulbs shouldn't be affected - the beetles overwinter in soil.
Re-plant your bulbs as quickly as you possibly can - unlike, say, daffodils they will be damaged if they dry out at all.
I've tried it, and got one or two measly flowers - really not worth the effort.
They are Israeli bulbs, needing hot sunshine and no frost at all - conditions that we can't really supply in the UK.
Yes, they're normally pruned in spring.
It's actually best to leave it until spring. The old growth will help protect the crown.
I hope that your visitors brought you a cake in recompense, Frank!
Still chucking it down here, but a promise of dryer weather tomorrow. Stay dry and safe, everyone!
Also throwing it down here in North Yorks, with rivers rising steadily and roads turning into rivers. There were flood signs on the road that I used this morning - just before an area that was dry Stay indoors and stay dry, Frank - unless you want a loan of my ark?
Hope everyone else avoids flooding, too.
No, it's not a crossover disease - blackspot is a fungus that thrives in wet weather. You can control it, but you need to remove all fallen leaves and cut out any areas that have black stains on them first. Then, next spring, spray as the leaves appear and keep spraying throughout the summer; that should control it quite well unless we have another soggy summer.
Depends how you treated it before it died down. After flowering it should be placed in a sunny spot and fed and watered throughout the summer, leaves cut down in October and the plant kept cool and dry for about 10-12 weeks. Lack of food and lack of a sufficient cold spell will both affect flowering.