May is such a busy month that it is always hard for me to focus on any single subject. So many plants are coming into bloom that it will make your head spin. The weeds and the bugs are also building up populations and there is pruning to do and fertilizing to complete. So here are some scattered thoughts that I hope will be helpful.
This little cool and wet spell we are experiencing (which is not uncommon for the month of May) is a good reminder for us to get rapidly growing perennials staked before they get completely out of control. Link Stakes and Grow Through Rings are the tools of choice for me but good old bamboo works well too. Get it done now.
Roses are prime for contracting black spot when it is damp like this and mildew and rust aren’t far behind. Fungicides work best as preventatives so get something on your beauties BEFORE you see any diseases. And while you are spraying be sure and hit the hollyhocks and snap dragons which both always get rust sooner or later.
Lilacs are just about finished blooming so this is the time to prune them if you think they are too tall for the spot they are growing in. You should also prune out any dead twigs that succumbed to lilac blight this spring. Actually, all spring blooming shrubs like rhodies and azaleas and heather should all be pruned this month.