There is an article here about pruning roses.
http://landscaping.about.com/od/rosebush鈥?/a>What do i do to my rose bush after it blooms? Shoud i cut it back yet? it looks like crap now.?
After a rose blooms, it should be pruned back to a leaf on the stem that has at least 5 leaflets (rose leaves can have 3, 5, or 7 leaflets). This will cause a new stem to form at the last bud on the existing stem, and results in bigger, more colorful blooms. At the very least, you should snap off the dead heads (hips) to keep them from sucking up the nutrients from the plant.
If you have any leaves with black or rust-colored spots, remove these (it's a type of fungus) and throw them away. Do not just leave these at the base of the plant as mulch, as the spores will dry out and get blown back up onto other leaves.
In winter (late December is ideal), cut the main stems back to about a half-dozen 1-foot canes. These should all be growing outward from the main trunk. Also, remove any shoots that originate from below the root ball any time you find them. These are wild shoots that will not produce healthy flowers, if any. In fact, they will eventually take over the bush, sucking all the nutrients from the healthy branches above, ruining your rose bush.
For feeding, use a systemic rose food. It contains the proper nutrients for the best blooms and also an insecticide, which makes the plant toxic to things like aphids.What do i do to my rose bush after it blooms? Shoud i cut it back yet? it looks like crap now.?
deadhead all hips prune back lightly so tidy then in october prune back hard
没有评论:
发表评论