- March 15th.—Finish the pruning of hardy varieties
- March 25th.—Plant new hardy roses, pruning
new plants rather more severely than those of the same varieties already
- April 15th.—Finish the pruning of tender
varieties, as far as possible, without uncovering completely. Give to
all the beds and to any neighbouring pear trees, grape-vines, or other
plants subject to fungoid troubles, a good spraying of Bordeaux mixture
as a preventive.
- April 20th-25th.—Uncover tender varieties.
Plant any new ones received, giving these slight protection of loose
hay for a short time over the tops, and a rather severe pruning.
- End of April.—Roses generally in leaf.
- May 20th.—Buds forming. Give a second treatment
- May 25th.—Earliest roses in bloom, including
Hugonis, Scotch roses, Persian Yellow, etc. Apply liquid manure to all
the H. P's. and H. T.'s.
- June 5th.—Hybrid Perpetual roses in full
glory. Watch for rose bugs; pick them into kerosene or water, or if
very plenty, use the protective spray.
- June 10th.—Another sulphur-tobacco
dusting. Keep after rose bugs. Stir into ground around each plant a
trowelful of half bone dust and half powdered sheep manure.
- June 20th.—Hybrid Teas in full bloom. Continue
vigilance for insects, mildew, and black-spot.
- July 1st.—Another sulphur dusting.
Hybrid Perpetuals decreasing. Hybrid Teas also decreasing.
- July 10th.—Rose bugs gone. Continue dusting
for mildew and black-spot; pick up and burn all fallen leaves; keep
ground thoroughly cultivated.
- July 20th.—Hybrid Teas and Teas decreasing.
Carefully cultivate and then mulch beds with peat moss or similar substance.
- August 10th.—General overlooking to get
any black-spotted leaves, and to check any insects.
- August 30th.—Hybrid Teas and Teas, second
bloom begins, lasting until frost.
- September 15th.—Second bloom of Hybrid Perpetuals
begins, but usually it is not very plentiful.
- October 15th.—Prepare new beds for the next
spring planting. Rigidly destroy by burning any leaves that show black-spot;
dust the remaining foliage.
- November 15th.—Begin protection after first
freezing of the ground.
- November 30th, or after a decided freeze, cover
up for winter, tying down long canes to prevent winter winds from whipping