Repotting guide

When & how to repot Greek Mountain Tea (Sideritis syriaca)

Also called Greek mountain tea, ironwort, shepherd's tea.

More about greek mountain tea

About Greek Mountain Tea

Sideritis syriaca · also called Greek mountain tea, ironwort · herb

Greek mountain tea is a low, silvery, woolly-leaved Mediterranean subshrub in the mint family, topped in summer with spikes of pale yellow flowers. The whole flowering plant is dried for the traditional Balkan herbal tea. Adapted to hot, dry, rocky mountainsides, it demands sharp drainage and full sun and resents winter wet.

Mature size: Typically 20-50 cm tall and 30-45 cm wide.

Watch for — Root rot from overwatering: The most common cause of death; the felted, dry-adapted roots rot in wet or poorly drained soil, especially over winter. Plant in gritty, sharply drained ground and water sparingly.

How to tell greek mountain tea needs repotting

Repotting on a calendar is less reliable than reading the plant. For greek mountain tea, 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 greek mountain tea

Every 2–3 years, into bone-dry mix. Greek Mountain Tea's growth habit — low, mounding, woody-based evergreen subshrub with dense rosettes of felted grey-green leaves and erect summer spikes of tubular pale yellow flowers in whorled bracts. — sets the pace. Greek mountain tea is a low, silvery, woolly-leaved Mediterranean subshrub in the mint family, topped in summer with spikes of pale yellow flowers. The whole flowering plant is dried for the traditional Balkan herbal tea. Adapted to hot, dry, rocky mountainsides, it demands sharp drainage and full sun and resents winter wet.

What size pot to step greek mountain tea up to

Use a pot only one size up — or even the same pot with fresh gritty mix if the roots have room. Greek Mountain Tea 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 greek mountain tea

Spring or summer, while greek mountain tea 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 greek mountain tea

Repot dry. Do not water greek mountain tea 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 drained, gritty, lean 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 greek mountain tea 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 greek mountain tea 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 greek mountain tea

Greek Mountain Tea wants sharply drained, gritty, lean soil. Wants poor, stony, alkaline to neutral ground with excellent drainage, mimicking its rocky mountain habitat. Add grit or gravel to heavy soils; rich or wet soil causes rapid root rot. Always use fresh mix when you repot — reusing old, broken-down soil reintroduces the compaction and poor drainage you are repotting to fix.

Repotting greek mountain tea — frequently asked questions

How often should you repot greek mountain tea?

Every 2–3 years, into bone-dry mix for greek mountain tea. Repot greek mountain tea every 2–3 years into a snug pot of sharply drained, gritty, lean 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 greek mountain tea need?

When is the best time of year to repot greek mountain tea?

Should you water greek mountain tea after repotting?

No — not straight away. Repot greek mountain tea 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 greek mountain tea after repotting?

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