Repotting guide

When & how to repot Alan Fradd Rock Rose (Cistus × purpureus 'Alan Fradd')

Also called Alan Fradd rock rose, Purple-flowered rock rose 'Alan Fradd'.

More about alan fradd rock rose

About Alan Fradd Rock Rose

Cistus × purpureus 'Alan Fradd' · also called Alan Fradd rock rose, Purple-flowered rock rose 'Alan Fradd' · flowering

Cistus × purpureus 'Alan Fradd' is a distinctive hardy cultivar of the purple rock rose hybrid, bearing unusually large, tissue-thin white flowers with a bold crimson-maroon blotch at the base of each petal and a central boss of golden anthers, creating a dramatic bicolour effect from summer into early autumn. Despite the species epithet purpureus, 'Alan Fradd' is effectively a white-flowered form of this hybrid, which is itself a cross between Cistus creticus and Cistus ladanifer. Like all rock roses, the golden rule is full sun combined with sharply drained, lean soil — wet winters are far more lethal than frost. It tolerates coastal exposure and poor, stony soils with ease. Cistus is not listed on the ASPCA toxic plant database; classified mildly-toxic as a precaution.

Mature size: 60–90 cm tall, 60–90 cm wide

Watch for — Root and crown rot from winter wet: The leading cause of plant loss, especially in heavy or clay-based soils. Plant in free-draining, gritty ground and avoid any mulch or organic material piled against the stem base. In marginal climates, grow against a warm south-facing wall for added thermal protection.

How to tell alan fradd rock rose needs repotting

Repotting on a calendar is less reliable than reading the plant. For alan fradd rock rose, watch for these signs:

Roots growing out of the drainage holes, or the rootball lifting the plant proud of the rim.
Soil that has shrunk away from the pot sides and no longer holds water.
The pot is unstable because the plant has grown top-heavy.
Old, compacted, broken-down mix that stays wet too long — for a succulent that is a rot risk, so refresh it even if the pot size is fine.

For the underlying biology of a pot-bound root system and why it stalls a plant, see our guide to spotting and fixing a root-bound plant.

How often to repot alan fradd rock rose

Every 2–3 years, into bone-dry mix. Alan Fradd Rock Rose's growth habit — upright-to-rounded, compact evergreen shrub with dark green, slightly sticky, lance-shaped leaves; fast-growing in the first few years, settling to a tidy mound; individual flowers last only one day but new blooms open each morning over a long season. — sets the pace. Cistus × purpureus 'Alan Fradd' is a distinctive hardy cultivar of the purple rock rose hybrid, bearing unusually large, tissue-thin white flowers with a bold crimson-maroon blotch at the base of each petal and a central boss of golden anthers, creating a dramatic bicolour effect from summer into early autumn. Despite the species epithet purpureus, 'Alan Fradd' is effectively a white-flowered form of this hybrid, which is itself a cross between Cistus creticus and Cistus ladanifer. Like all rock roses, the golden rule is full sun combined with sharply drained, lean soil — wet winters are far more lethal than frost. It tolerates coastal exposure and poor, stony soils with ease. Cistus is not listed on the ASPCA toxic plant database; classified mildly-toxic as a precaution.

What size pot to step alan fradd rock rose up to

Use a pot only one size up — or even the same pot with fresh gritty mix if the roots have room. Alan Fradd Rock Rose stores water and rots in a large pot of slow-drying soil. A tight terracotta pot that dries fast is far safer than a generous plastic one. Never up-pot a succulent by several sizes.

Not sure of the exact diameter? Our pot size calculator takes the current pot and root spread and tells you the right next size — it deliberately recommends a single step up, never a big jump.

The best time of year to repot alan fradd rock rose

Spring or summer, while alan fradd rock rose is in active growth and warm, is best — roots recover fastest then, and the plant is not sitting in cool damp soil. Avoid repotting a succulent in winter dormancy.

Step-by-step: repotting alan fradd rock rose

Repot dry. Do not water alan fradd rock rose for several days first. Working with dry roots and dry mix dramatically lowers the rot risk for a succulent.
Pick a snug, fast-draining pot. Choose terracotta one size up at most, with a drainage hole. Have gritty well-drained, low-fertility; tolerates chalk, sand, coastal sand, and stony ground ready.
Tip it out and clean the roots. Slide the plant out, crumble off the old soil, and trim any black, mushy or dead roots with clean snips.
Pot into dry mix. Set alan fradd rock rose at its original depth in dry gritty mix, firming gently. Do not bury the stem deeper than it was.
Wait a week before watering. Leave it completely dry and out of harsh sun for about 7 days so any damaged roots callus. Only then water lightly.

Aftercare

Keep alan fradd rock rose completely dry and out of fierce sun for about a week so any nicked roots callus before they meet moisture; watering a freshly repotted succulent is the classic way to rot it. Then resume the normal lean, dry rhythm. Do not fertilise for about 3 weeks — fresh mix already carries nutrients and feeding freshly disturbed roots scorches them.

The right soil mix for alan fradd rock rose

Alan Fradd Rock Rose wants well-drained, low-fertility; tolerates chalk, sand, coastal sand, and stony ground. Plant in gritty, fast-draining soil at pH 6.0–8.0. Heavy or waterlogged soils cause fatal root rot, particularly over winter. For containers, use a loam-based compost with 30–40% horticultural grit and ensure drainage holes are unobstructed. May show minor chlorosis on very chalky soils after several years. Always use fresh mix when you repot — reusing old, broken-down soil reintroduces the compaction and poor drainage you are repotting to fix.

Repotting alan fradd rock rose — frequently asked questions

How often should you repot alan fradd rock rose?

Every 2–3 years, into bone-dry mix for alan fradd rock rose. Repot alan fradd rock rose every 2–3 years into a snug pot of well-drained, low-fertility; tolerates chalk, sand, coastal sand, and stony ground, ideally in spring or summer. Let it sit in dry soil and do not water for about a week afterwards so any nicked roots can callus. Over-potting and watering straight away is what rots succulents.

What size pot does alan fradd rock rose need?

When is the best time of year to repot alan fradd rock rose?

Should you water alan fradd rock rose after repotting?

No — not straight away. Repot alan fradd rock rose into dry mix and wait about a week before the first watering so any damaged roots callus over. Watering a freshly repotted succulent is the single most common way to rot one.

Should you fertilise alan fradd rock rose after repotting?

Not immediately. Wait about 3 weeks after repotting alan fradd rock rose. Fresh mix already contains nutrients, and feeding freshly cut or disturbed roots burns them. Resume your normal feeding routine once you see new growth.