Rose bloom balling

Time to act:

Jun, Jul, Aug

Balling is triggered by cool, damp conditions, often in a partially shady site, where water-saturated outer petals fail to dry out before being scorched by the sun. The mushy plant tissue dries to form a stiff straightjacket around the petals, preventing the flower from opening. An invisible soft, slimy layer of mycelium then fuses the petals together. The problem is most acute on roses with a multitude of thin petals.

Symptoms

Apparently healthy rose buds develop and fatten but fail to open. They eventually wither or drop off.

Find it on

roses

Advertisement

Organic

The only option is to cut off the damaged buds and wait for new ones to develop. Be careful not to trigger the problem by splashing water onto the buds when watering your roses. If damaged buds aren't removed, there's a risk that grey mould may develop and cause the stems to die back. If this happens, prune back shoots to healthy growth.

Advertisement

Discover more ideas and inspiration

Related content

Rose black spot

Leafcutter bees

Rose leaf rolling sawfly

Rose powdery mildew

Related offers

FREE P&P

Subscriber only content

Save £6 on witch hazel

Add winter colour to your garden with vibrant witch hazel 'Jelena'. Buy one plant for £12.99, or save £6 when you buy two for just £19.98, plus free p&p.

Unlock now

Offer

Patio collection, plus free freesias

Save £38 when you buy this collection of patio plants, including compact wisteria, philadelphus, and loropetalum, for just £21. You'll also receive 10 free giant freesia bulbs (worth £14.50) when you buy the collection.

Order now

FREE P&P

Subscriber only content

Year-round clematis collection

This clematis collection includes five beautiful varieties that provide colour throughout the year. You'll get five plants (one of each) for just £9.95, saving £15 on the RRP, plus free p&p.

Unlock now