Repotting guide

When & how to repot Annual baby's breath (Gypsophila elegans)

Also called Annual baby's breath, Showy baby's breath, Annual gypsophila.

More about annual baby's breath

About Annual baby's breath

Gypsophila elegans · also called Annual baby's breath, Showy baby's breath · flowering

Annual baby's breath produces a delicate, airy cloud of small white or pink flowers on branching stems, blooming profusely for 4–6 weeks. It is a classic filler in cut-flower bouquets and cottage gardens. Direct-sow in full sun in alkaline, well-drained soil. Succession-sow every 3–4 weeks for continuous bloom from late spring to early autumn.

Mature size: 30–60 cm tall, 25–45 cm wide

Watch for — Root and stem rot in heavy or wet soil: Fusarium and Pythium root rots rapidly kill plants in poorly drained or compacted soil. This is the most common cause of failure with Gypsophila. Improve drainage before sowing; never sow into waterlogged ground. Succession sowings in light, gritty soil side-step the issue.

How to tell annual baby's breath needs repotting

Repotting on a calendar is less reliable than reading the plant. For annual baby's breath, 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 annual baby's breath

Every 2–3 years, into bone-dry mix. Annual baby's breath's growth habit — bushy, much-branched annual with very fine, lance-shaped, blue-green leaves; clouds of tiny 5-petalled flowers covering the plant — sets the pace. Annual baby's breath produces a delicate, airy cloud of small white or pink flowers on branching stems, blooming profusely for 4–6 weeks. It is a classic filler in cut-flower bouquets and cottage gardens. Direct-sow in full sun in alkaline, well-drained soil. Succession-sow every 3–4 weeks for continuous bloom from late spring to early autumn.

What size pot to step annual baby's breath up to

Use a pot only one size up — or even the same pot with fresh gritty mix if the roots have room. Annual baby's breath 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 annual baby's breath

Spring or summer, while annual baby's breath 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 annual baby's breath

Repot dry. Do not water annual baby's breath 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 light, gritty or sandy, alkaline to neutral, very well-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 annual baby's breath 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 annual baby's breath 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 annual baby's breath

Annual baby's breath wants light, gritty or sandy, alkaline to neutral, very well-drained. The genus name Gypsophila means 'chalk-loving' — these plants are native to calcareous, stony soils with pH 7.0–8.5. Heavy clay or acidic soils are unsuitable. Work lime into acidic soils before sowing. Excellent drainage is critical; waterlogged roots rapidly 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 annual baby's breath — frequently asked questions

How often should you repot annual baby's breath?

Every 2–3 years, into bone-dry mix for annual baby's breath. Repot annual baby's breath every 2–3 years into a snug pot of light, gritty or sandy, alkaline to neutral, very well-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 annual baby's breath need?

When is the best time of year to repot annual baby's breath?

Should you water annual baby's breath after repotting?

No — not straight away. Repot annual baby's breath 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 annual baby's breath after repotting?

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