Repotting guide

When & how to repot Cadiz Thrift (Armeria gaditana)

Also called Cadiz Thrift, Gaditana Thrift.

More about cadiz thrift

About Cadiz Thrift

Armeria gaditana · also called Cadiz Thrift, Gaditana Thrift · flowering

Armeria gaditana is a rare, evergreen perennial endemic to the coastal cliffs and sandy soils around Cadiz in southern Spain, one of the more tender members of the genus due to its origin in the mild Atlantic coast of Andalusia. It forms low grassy mounds and produces pink or white drumstick flower heads in spring and early summer. Because of its restricted natural range and warm coastal climate, it requires exceptionally free-draining soil and is best treated as marginally hardy in the UK, needing a warm, sheltered, south-facing position. This species is not confirmed toxic by ASPCA; treat as mildly toxic as a precaution.

Mature size: 15–30 cm tall in flower, spreading 20–30 cm wide.

Watch for — Winter frost damage: As the most tender Armeria species widely cultivated, temperatures below -5°C can damage or kill the crown; in USDA zone 8 and cooler, grow in a pot brought under cold glass in winter or protect with fleece in situ.

How to tell cadiz thrift needs repotting

Repotting on a calendar is less reliable than reading the plant. For cadiz thrift, 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 cadiz thrift

Every 2–3 years, into bone-dry mix. Cadiz Thrift's growth habit — low, spreading evergreen perennial mound with narrow, grassy foliage. — sets the pace. Armeria gaditana is a rare, evergreen perennial endemic to the coastal cliffs and sandy soils around Cadiz in southern Spain, one of the more tender members of the genus due to its origin in the mild Atlantic coast of Andalusia. It forms low grassy mounds and produces pink or white drumstick flower heads in spring and early summer. Because of its restricted natural range and warm coastal climate, it requires exceptionally free-draining soil and is best treated as marginally hardy in the UK, needing a warm, sheltered, south-facing position. This species is not confirmed toxic by ASPCA; treat as mildly toxic as a precaution.

What size pot to step cadiz thrift up to

Use a pot only one size up — or even the same pot with fresh gritty mix if the roots have room. Cadiz Thrift 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 cadiz thrift

Spring or summer, while cadiz thrift 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 cadiz thrift

Repot dry. Do not water cadiz thrift 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 sandy, gritty, sharply drained soil 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 cadiz thrift 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 cadiz thrift 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 cadiz thrift

Cadiz Thrift wants sandy, gritty, sharply drained soil. Naturally grows in coastal sands and calcareous soils around Cadiz; requires near-perfect drainage and performs well in lean, nutrient-poor substrates. Always use fresh mix when you repot — reusing old, broken-down soil reintroduces the compaction and poor drainage you are repotting to fix.

Repotting cadiz thrift — frequently asked questions

How often should you repot cadiz thrift?

Every 2–3 years, into bone-dry mix for cadiz thrift. Repot cadiz thrift every 2–3 years into a snug pot of sandy, gritty, sharply drained soil, 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 cadiz thrift need?

When is the best time of year to repot cadiz thrift?

Should you water cadiz thrift after repotting?

No — not straight away. Repot cadiz thrift 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 cadiz thrift after repotting?

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