Plant your window boxes
Prune spring flowering shrubs when they have finished blooming
Use balanced, organic fertilizers around flowers
Be sure to fertilize your annuals with liquid fertilizer. They'll thank you for it by blooming continuously!
Stake tall perennials and tomatoes
Use a pine needle mulch for blueberries
Be sure your lawn mower is set to cut the grass HIGH
After the iris are done blooming they can be divided
Gladiolus corms can be planted
Dead-head (prune off) spent flowers from plants and shrubs
Remove rhubarb seed stalks as they form.
Cutting back perennials such as dianthus, veronica and other similar shrubby varieties, will possibly produce a second blooming. How great would that be? They'll also look better!
You can make softwood cuttings of shrubs this month through July.
You may still plant container grown shrubs
Plant broccoli seed for fall harvest.
If you have a water garden, there's still time to plant water
House plants can soon be moved outside to a shady, protected spot.
These same houseplants can be lightly fed with half strength
Mulch perennials and roses to keep down weeds and conserve moisture.
Look for Jap. beetles either early or late in the day and shake them into a bucket of soapy water. The reason you don't do it mid-day is because they'll out run you!
Any annuals can be safely set out now.
If you have an amaryllis, now would be the time to move it outside.
Pinch the leading stems of your chrysanthemum's to encourage them to
be bushier and have more blossoms. Continue doing this every 6 inches
or so, as they grow.
If you have apple trees, hang red sticky-ball traps to control apple maggot flies. Small trees can get by with 2 balls. Larger trees should probably have 4-6 balls.
Stop cutting asparagus when the new spears get pinkie-finger thin. Let them grow into ferns instead. It will feed the roots.
Side-Dress Veggies to give them a little boost
Have you got Hosta's? Are there slugs chewing them? Try this solution, if you haven't already.
Combine 9 parts water to 1 part common household ammonia and spray it on the hosta just before dark. When the slugs hit this, they will dissolve!
Are you remembering to turn the compost every once in a while? You should also wet it down if the hose is close by. Doing this will help it decompose quicker although it will eventually happen anyway!
Mow down any daffodil drifts as they die down.
Order your bulbs so they arrive in time to plant in the autumn.