Repotting guide

When & how to repot Larch-Leaved Stitchwort (Minuartia laricifolia)

Also called Larch-leaved stitchwort, Larch-leaf sandwort.

More about larch-leaved stitchwort

About Larch-Leaved Stitchwort

Minuartia laricifolia · also called Larch-leaved stitchwort, Larch-leaf sandwort · flowering

Minuartia laricifolia is a low, cushion-forming evergreen perennial native to rocky, montane habitats across southern and central Europe, from the Pyrenees and Iberian mountains east to the Alps and Austria. It forms tight mats of thread-like, grey-green, larch-like foliage and bears masses of small white star-shaped flowers in late spring. Full sun and excellent drainage in gritty or rocky soil are essential; it is notably drought-tolerant once established and excels in crevice gardens, alpine troughs, and green roofs. Not listed in the ASPCA database; classified as mildly-toxic on a precautionary basis.

Mature size: 10–15 cm tall, spreading to 30–40 cm wide.

Watch for — Root and crown rot from waterlogging: The primary cause of loss; winter waterlogging in poorly drained soils causes the cushion to collapse — always plant in gritty, free-draining compost or in a natural rock crevice.

How to tell larch-leaved stitchwort needs repotting

Repotting on a calendar is less reliable than reading the plant. For larch-leaved stitchwort, 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 larch-leaved stitchwort

Every 2–3 years, into bone-dry mix. Larch-Leaved Stitchwort's growth habit — low, cushion- or mat-forming evergreen perennial with needle-like, thread-fine foliage. — sets the pace. Minuartia laricifolia is a low, cushion-forming evergreen perennial native to rocky, montane habitats across southern and central Europe, from the Pyrenees and Iberian mountains east to the Alps and Austria. It forms tight mats of thread-like, grey-green, larch-like foliage and bears masses of small white star-shaped flowers in late spring. Full sun and excellent drainage in gritty or rocky soil are essential; it is notably drought-tolerant once established and excels in crevice gardens, alpine troughs, and green roofs. Not listed in the ASPCA database; classified as mildly-toxic on a precautionary basis.

What size pot to step larch-leaved stitchwort up to

Use a pot only one size up — or even the same pot with fresh gritty mix if the roots have room. Larch-Leaved Stitchwort 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 larch-leaved stitchwort

Spring or summer, while larch-leaved stitchwort 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 larch-leaved stitchwort

Repot dry. Do not water larch-leaved stitchwort 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 gritty, rocky, or gravelly, sharply drained; tolerates poor, nutrient-deficient soils 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 larch-leaved stitchwort 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 larch-leaved stitchwort 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 larch-leaved stitchwort

Larch-Leaved Stitchwort wants gritty, rocky, or gravelly, sharply drained; tolerates poor, nutrient-deficient soils. Naturally colonises bare rocky outcrops and serpentine soils; thrives in a gravelly crevice mix and resents organic-rich or moisture-retentive 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 larch-leaved stitchwort — frequently asked questions

How often should you repot larch-leaved stitchwort?

Every 2–3 years, into bone-dry mix for larch-leaved stitchwort. Repot larch-leaved stitchwort every 2–3 years into a snug pot of gritty, rocky, or gravelly, sharply drained; tolerates poor, nutrient-deficient soils, 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 larch-leaved stitchwort need?

When is the best time of year to repot larch-leaved stitchwort?

Should you water larch-leaved stitchwort after repotting?

No — not straight away. Repot larch-leaved stitchwort 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 larch-leaved stitchwort after repotting?

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