A Rose Calendar
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Frosts are likely, so there is usually little to do in the rose garden this month. Check roses growing on supports to make sure that the ties are strong enough to hold them. Inspect autumn-planted bushes and standards to see if they have been loosened by frosts. Firm if necessary.
No action needed. See January.
Plant this month. In most areas, March is the best time to prune bush and standard roses. Burn all prunings. Fertilizer may be spread around the bushes immediately after pruning and lightly worked into the surface, but it is generally better to wait until April. Weed beds thoroughly.
Pruning must be completed by the beginning of the month, as roses will now be starting to grow actively. Rub out any surplus young shoots. Apply a fertilizer which contains the plant foods needed by the rose.
Garden roses will not be growing rapidly, and a mulch should be applied. Hoeing can be carried out to destroy the weeds, but do not dig in the mulching material. Greenfly attacks are likely, and a systemic insecticide which works internally is the best method of control. A spray or dust for other insect pests or early disease outbreak may be necessary. Watch for first attacks. If you plan to feed using liquid fertilizer, then apply the first feed this month when the soil is moist. Apply a foliar feed to backward plants.
Roses are now coming into flower. Hoeing, spraying and watering should be continued as necessary. Mulch with grass clippings if they are free from weed killer. Cut flowers for indoor decoration from established plants, not from newly planted bushes. Disbudding of hybrid teas will ensure top-quality blooms. A summer fertilizer dressing will keep the plants growing vigorously and help to produce a succession of flower buds. Continue foliar feeding for top-quality blooms. Apply a mixed systemic insecticide/fungicide spray to keep pests and diseases at bay.
Bushes and standards should now be in full flower. July is usually the best month to enjoy your roses. Deadhead flower stalks when the blooms have finished flowering. Apply a summer dressing of fertilizer if this was not done last month. Hoe, disbud, mulch and water if necessary as described for June. Keep a special watch for the first signs of black spot and mildew. Spray immediately if seen.
The cultural techniques described for July apply this month, with the exception of fertilizer application, which should stop at the end of July.
Roses will generally still be flowering freely, and deadheading now will help to ensure a fine late display. Vigorous summer-flowering climbers and weeping standards should have been pruned by now. Never leave these plants for pruning in the spring.
This month is the start f the rose grower's year. Tidy up beds. Hoe in the mulching material and collect and burn leaves.
Get plants ready for winter. In exposed areas, long stems should be cut back a little to prevent wind damage during winter storms. In severe cold, stems should be earthed-up or covered with straw, but remove this coverage in spring. An excellent time for planting. If the bushes or standards arrive when the weather is unsuitable or before you are ready, leave package unopened or heel-in plants.
There is no work to do in the established rose garden, but work can begin on the preparation of new rose beds which are to be planted in March.