Repotting guide

When & how to repot Hemigraphis alternata (Hemigraphis alternata)

Also called Red ivy, Cemetery plant.

More about hemigraphis alternata

About Hemigraphis alternata

Hemigraphis alternata · also called Red ivy, Cemetery plant · tropical

Hemigraphis alternata is a low, spreading tropical groundcover grown for metallic purple-silver leaves with wine-red undersides. It trails or carpets in warm, humid, frost-free spots, wanting bright indirect light and consistently moist, well-drained soil. Vigorous and forgiving, it roots wherever stems touch soil and makes an easy, pet-safe houseplant or hanging-basket subject.

Mature size: 15-25 cm tall, spreading 30-60 cm or more; trails to 30-45 cm in baskets.

Watch for — Root rot: Soggy, poorly drained soil rots the shallow roots. Use a free-draining mix and avoid letting the pot stand in water.

How to tell hemigraphis alternata needs repotting

Repotting on a calendar is less reliable than reading the plant. For hemigraphis alternata, watch for these signs:

Roots poking out of the drainage holes or coiling visibly around the inside of the pot.
You are watering far more often than you used to because the rootball dries out within a day or two.
Water runs straight through and out the bottom without soaking in.
Top growth has slowed or new hemigraphis alternata leaves are noticeably smaller than older ones despite good light.

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 hemigraphis alternata

Every 12–18 months — sooner if roots show fast. Hemigraphis alternata's growth habit — low, mat-forming, fast-spreading trailing perennial; stems root readily at the nodes, making it ideal for groundcover, hanging baskets, and terrariums. — sets the pace. Hemigraphis alternata is a low, spreading tropical groundcover grown for metallic purple-silver leaves with wine-red undersides. It trails or carpets in warm, humid, frost-free spots, wanting bright indirect light and consistently moist, well-drained soil. Vigorous and forgiving, it roots wherever stems touch soil and makes an easy, pet-safe houseplant or hanging-basket subject.

What size pot to step hemigraphis alternata up to

Step up one pot size — about 2–3 cm (an inch) wider. Hemigraphis alternata grows fast, so it will fill that space within a season, but jumping several sizes at once still backfires: the unused soil stays soggy and rots even a vigorous root system. One size at a time, every year or so, is the rhythm.

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 hemigraphis alternata

Early spring, just as new growth restarts, is the ideal window for hemigraphis alternata. The plant is moving into its strongest growth phase and re-roots into fresh soil quickly. Avoid repotting in winter dormancy or, for flowering plants, while it is in bud or bloom — recovery is slowest then and you risk dropping the flowers.

Step-by-step: repotting hemigraphis alternata

Time it for spring. Repot hemigraphis alternata in early spring as growth restarts so it re-roots quickly into the fresh soil.
Choose one size up. Pick a pot about 2–3 cm wider with drainage holes. One step only — a much bigger pot stays soggy and rots roots.
Ease the plant out. Water lightly the day before, then tip hemigraphis alternata out and gently loosen any roots circling the bottom of the rootball.
Repot at the same depth. Put a layer of fresh moisture-retentive, well-draining potting mix in the new pot, set the plant so its soil line is unchanged, and backfill, firming lightly.
Water and pause feeding. Water once to settle the soil. Hold off fertiliser for about a month — fresh mix already has nutrients and feeding now burns new roots.

Aftercare

Water hemigraphis alternata once to settle the soil, then let the surface dry before watering again — fresh mix around the roots stays wetter than the old compacted ball, so the commonest post-repot mistake is overwatering. Keep it out of direct sun for a week or two while roots re-establish. Do not fertilise for about 4 weeks — fresh mix already carries nutrients and feeding freshly disturbed roots scorches them.

The right soil mix for hemigraphis alternata

Hemigraphis alternata wants moisture-retentive, well-draining potting mix. A humus-rich mix with perlite holds the steady moisture it likes while still draining. Slightly acidic to neutral pH suits it; it also adapts to terrarium 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 hemigraphis alternata — frequently asked questions

How often should you repot hemigraphis alternata?

Every 12–18 months — sooner if roots show fast for hemigraphis alternata. Repot hemigraphis alternata roughly every 12–18 months, in early spring as growth restarts. It grows fast and circles its pot quickly, so step up one size (about 2–3 cm wider) into fresh moisture-retentive, well-draining potting mix. Don't jump several sizes — that soggy excess soil is what rots vigorous roots.

What size pot does hemigraphis alternata need?

When is the best time of year to repot hemigraphis alternata?

Can you put hemigraphis alternata straight into a much bigger pot?

No. Even a fast-growing hemigraphis alternata should only go up one pot size at a time. A vastly oversized pot holds a reservoir of wet soil the roots cannot reach, which stays cold and soggy and rots the roots — the opposite of what you wanted.

Should you fertilise hemigraphis alternata after repotting?

Not immediately. Wait about 4 weeks after repotting hemigraphis alternata. Fresh mix already contains nutrients, and feeding freshly cut or disturbed roots burns them. Resume your normal feeding routine once you see new growth.