Repotting guide

When & how to repot Spanish Draba (Draba hispanica)

Also called Spanish Draba, Spanish Whitlow Grass.

More about spanish draba

About Spanish Draba

Draba hispanica · also called Spanish Draba, Spanish Whitlow Grass · flowering

Spanish Draba is a compact, mat-forming alpine perennial native to the Iberian Peninsula and Pyrenees. It produces tight cushions of small grey-green leaves topped with bright yellow flower clusters in early spring. Best suited to rock gardens, scree beds, or alpine troughs, it demands excellent drainage and full sun to thrive in cultivation.

Mature size: 5–10 cm tall, spreading 15–25 cm wide

Watch for — Loss of compact habit: Plants grown in rich soil or shade become loose and sprawling, losing their characteristic cushion form. Replant in pure scree mix in a sunnier position; renovation by division can restore vigour.

How to tell spanish draba needs repotting

Repotting on a calendar is less reliable than reading the plant. For spanish draba, 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 spanish draba

Every 2–3 years, into bone-dry mix. Spanish Draba's growth habit — mat-forming or cushion perennial; low-growing rosette clusters spreading slowly outward — sets the pace. Spanish Draba is a compact, mat-forming alpine perennial native to the Iberian Peninsula and Pyrenees. It produces tight cushions of small grey-green leaves topped with bright yellow flower clusters in early spring. Best suited to rock gardens, scree beds, or alpine troughs, it demands excellent drainage and full sun to thrive in cultivation.

What size pot to step spanish draba up to

Use a pot only one size up — or even the same pot with fresh gritty mix if the roots have room. Spanish Draba 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 spanish draba

Spring or summer, while spanish draba 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 spanish draba

Repot dry. Do not water spanish draba 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 sharply draining gritty or scree mix 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 spanish draba 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 spanish draba 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 spanish draba

Spanish Draba wants sharply draining gritty or scree mix. Use a mix of at least 50% coarse grit or pea gravel combined with loam and horticultural sand. Neutral to slightly alkaline pH (6.5–7.5) is preferred. Rich soils promote lush but weak, rot-prone growth. Alpine or John Innes No.1 with extra grit works well. Always use fresh mix when you repot — reusing old, broken-down soil reintroduces the compaction and poor drainage you are repotting to fix.

Repotting spanish draba — frequently asked questions

How often should you repot spanish draba?

Every 2–3 years, into bone-dry mix for spanish draba. Repot spanish draba every 2–3 years into a snug pot of sharply draining gritty or scree mix, 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 spanish draba need?

When is the best time of year to repot spanish draba?

Should you water spanish draba after repotting?

No — not straight away. Repot spanish draba 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 spanish draba after repotting?

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