Watering
Roses are deep-rooted plants, so once they have settled in they can usually survive on the moisture naturally present in the soil. However, in hot, dry spells or in dry, sandy soils they may need additional water.
In their first few years after planting, new roses should be watered regularly, especially in summer, until their roots are well established.
How to water roses
When watering, direct the flow onto the soil around the base of the plant, avoiding the foliage and flowers. This helps to deter fungal diseases and avoid excess water use.
Roses in borders
Established roses should really only need watering during dry spells in high summer – when you should water up to once a week, using 5-10 litres (about one large watering can) per plant. If the blooms or leaves start to wilt, then water immediately.
Giving plants a good soak once a week, rather than watering lightly more often, encourages deeper rooting. This makes the plants better able to find moisture in the soil.
Roses in containers
These need much more water than plants growing in the ground. Water as often as needed, which could be daily in hot weather. Try not to let the compost dry out, but don’t let it get waterlogged either.
Feeding
Roses are hungry plants and will flower and grow better if given additional feed and mulched with well-rotted manure.
How to feed roses
Roses in borders
To encourage abundant blooms, feed twice a year:
- in March/April before flowering
- in mid-summer after the first flush of flowers (especially for repeat-flowering types)
Sprinkle general-purpose or rose fertiliser on the soil around the plant, at a rate of 70g per sq m (2oz per sq yd). Then mulch the soil with well-rotted manure or garden compost, leaving a gap of 10cm (4in) around the base of the stems.
Roses in containers
These need feeding more often than roses in borders, as they have less access to nutrients.
- Feed once a fortnight from mid-spring to late summer
- Use a general-purpose liquid fertiliser until flower buds form, to encourage healthy growth
- Once flowering starts, change to a high-potash fertiliser, such as tomato feed, for more flowers
Weeding
Try to keep the soil around your rose free of weeds. Roses produce some roots near the soil surface, so avoid damaging these by hand-weeding rather than using a hoe. Just take care to stay clear of the thorns! Cover the soil with a thick layer of mulch in spring to deter annual weeds from germinating.
Deadheading
To encourage more blooms, snip off fading flowers once a week or so. If you don’t deadhead, many roses will form hips (seed pods) and give up making more flowers.
Some roses produce particularly decorative hips – you should stop deadheading these plants in mid-summer to give the hips time to form.
Rose hips are also a valuable winter food source for birds such as thrushes and blackbirds.