Repotting guide

When & how to repot Phlomis-Like Sage (Salvia phlomoides)

Also called Phlomis-like sage, Woolly-leaf sage.

More about phlomis-like sage

About Phlomis-Like Sage

Salvia phlomoides · also called Phlomis-like sage, Woolly-leaf sage · flowering

Salvia phlomoides is a robust, subshrubby perennial native to the Iberian Peninsula and north-west Africa, taking its common name from the strong resemblance its large, felted, grey-woolly leaves bear to plants in the genus Phlomis. It produces whorled spikes of pale lavender to violet flowers on stout stems in summer and thrives in hot, exposed positions with fast-draining, lean soil. Like other Spanish sages, it is highly drought tolerant once established and suffers most from excess winter moisture. ASPCA lists Salvia as non-toxic to cats and dogs.

Mature size: 60-90 cm tall by 60-90 cm wide (24-36 in × 24-36 in).

Watch for — Crown rot in wet winters: The dense crown of felted foliage holds moisture; ensure perfect drainage, avoid planting in low spots, and thin the crown if it becomes very dense to improve airflow.

How to tell phlomis-like sage needs repotting

Repotting on a calendar is less reliable than reading the plant. For phlomis-like sage, 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 phlomis-like sage

Every 2–3 years, into bone-dry mix. Phlomis-Like Sage's growth habit — erect to mounding, sub-evergreen perennial subshrub with stout, woolly-leaved stems. — sets the pace. Salvia phlomoides is a robust, subshrubby perennial native to the Iberian Peninsula and north-west Africa, taking its common name from the strong resemblance its large, felted, grey-woolly leaves bear to plants in the genus Phlomis. It produces whorled spikes of pale lavender to violet flowers on stout stems in summer and thrives in hot, exposed positions with fast-draining, lean soil. Like other Spanish sages, it is highly drought tolerant once established and suffers most from excess winter moisture. ASPCA lists Salvia as non-toxic to cats and dogs.

What size pot to step phlomis-like sage up to

Use a pot only one size up — or even the same pot with fresh gritty mix if the roots have room. Phlomis-Like Sage 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 phlomis-like sage

Spring or summer, while phlomis-like sage 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 phlomis-like sage

Repot dry. Do not water phlomis-like sage 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, or loamy, sharply drained 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 phlomis-like sage 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 phlomis-like sage 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 phlomis-like sage

Phlomis-Like Sage wants sandy, gritty, or loamy, sharply drained. Prefers lean, poor to moderately fertile soil; chalk and limestone soils suit it well. Amend heavy clay with grit or grow in raised beds. Always use fresh mix when you repot — reusing old, broken-down soil reintroduces the compaction and poor drainage you are repotting to fix.

Repotting phlomis-like sage — frequently asked questions

How often should you repot phlomis-like sage?

Every 2–3 years, into bone-dry mix for phlomis-like sage. Repot phlomis-like sage every 2–3 years into a snug pot of sandy, gritty, or loamy, sharply drained, 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 phlomis-like sage need?

When is the best time of year to repot phlomis-like sage?

Should you water phlomis-like sage after repotting?

No — not straight away. Repot phlomis-like sage 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 phlomis-like sage after repotting?

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