Grow campion in full sun and soil that drains in winter. Rose campion (Lychnis coronaria, often tagged Silene coronaria) is the silver-leaf cottage plant; plan on seedlings, not one crown forever. Maltese cross wants the same sun with steadier moisture.
Full sun, drain, and rose campion vs Maltese
| Factor | Recommended | Avoid |
|---|---|---|
| Light | Full sun for silver foliage and strong bloom | Deep shade (soft stems, dull leaves, few flowers) |
| Rose campion soil | Lean, well-drained; dry to medium once established | Wet winter clay that sits on the crown |
| Maltese cross soil | Even moisture with drainage; loam or grit that does not pond | A gravel drought bed, or a stagnant puddle |
| Lifespan | Short-lived; leave seed or replace plants | Treating one crown as a permanent silver shrub |
Missouri Botanical Garden: soils must drain in winter. Raised ground helps where snow cover is thin. Silver leaves look best when the soil stays on the dry side.
Does campion need full sun?
Yes for silver contrast and bloom. Deep shade stretches stems and fades the leaves.
Is rose campion a perennial?
Often a short-lived perennial or biennial. Colonies last when seedlings refill the gap, not because one crown lives forever.
How to plant campion
University of Wisconsin Horticulture: skip a heavy mulch where you want seedlings. Thin extras in spring.
- Plant in spring or early fall while the soil is workable. Skip a July heat wave unless you can water daily.
- Choose full sun. For rose campion, pick a raised or gritty spot. For Maltese cross, pick sun that stays evenly moist but never ponds.
- Dig a hole as deep as the root ball and a little wider. Set the crown at the old nursery line. Do not bury the stem.
- Backfill. Firm. Water until the hole settles. Space about 12–15 inches so air moves between clumps.
- Do not fertilize the hole. Lean soil keeps stems sturdier than a nitrogen push.
- If you start from seed, press it on the surface. Seed needs light to germinate. Do not bury it.
- Water to establish. Then keep rose campion on the dry side. Keep Maltese cross from baking dry in summer heat.
Will rose campion self-seed?
Usually yes on open, draining ground. Leave some heads and skip heavy mulch if you want volunteers. Thin seedlings in spring.
Deadhead, seed, and winter crowns
University of Arkansas Extension: in humid summers on wet winter clay, rose campion is iffy. Some gardeners grow it as a winter annual on purpose.
- Deadhead or shear to the basal leaves after the first flush for a tidier plant and often a second bloom.
- Leave some late heads if you want a self-sown colony. Pull extras in spring. They are the parent plant, not a mystery weed.
- Stake Maltese cross in rich or windy ground so the scarlet heads do not flop.
- Cut dead stems in fall or early spring once new basal growth shows. Keep a thick wet mulch pile off rose campion crowns in winter.
Should you deadhead campion?
Optional. Deadhead or shear after the first flush for a second bloom. Leave seed if you want a colony.
Why did my rose campion disappear?
The original plant is often short-lived. Wet winter crowns or shade finish it. Check drainage and sun, and allow seedlings.
Kinds, pots, partners, and what fails
Kinds
- Rose campion — rose campion and white ‘Alba’: felted silver leaves and magenta or white flowers. Full sun, sharp drain, plan on seed. Open-pollinated white may not come perfectly true.
- Maltese cross — Maltese cross: upright scarlet cross-shaped clusters. Same sun, steadier moisture, stake if tall. Tags may say Silene chalcedonica.
- Ragged robin — ‘Petite Jenny’: a softer meadow campion. Do not force it into the same dry silver pocket as rose campion.
Is rose campion the same as Silene?
Often yes on a modern tag. Rose campion is the same plant as Silene coronaria. Match the silver felt and magenta or white flowers, not a field catchfly.
What is Maltese cross?
Lychnis (Silene) chalcedonica: scarlet cross-shaped clusters on upright stems. Full sun, even moisture, good drainage. Stake if tall.
Pots
- A large pot with holes, in full sun.
- A mix that drains. Empty the saucer after rain.
- Expect to refresh or reseed. A tiny pot will not hold one crown forever.
Can campion grow in pots?
Yes in a large draining container in full sun. Empty the saucer. Plan to refresh or reseed.
Partners
Sit grasses, stachys, verbascum, or hardy geranium beside rose campion on the same lean drain. Pair Maltese cross with sun perennials that share moderate moisture, not desert herbs. Do not plant both kinds on one hose if one bed stays wet and the other stays dry.
What fails
- Deep shade.
- Wet winter clay on rose campion.
- Bone-dry gravel for Maltese cross.
- Yanking every seedling, then wondering why the silver vanished.
- Hard fertilizer that makes soft, floppy stems.
Leave some rose campion seed if you want silver back next year. Keep Maltese cross from baking dry. Thin extra seedlings in spring.
FAQ
Is rose campion the same as lamb's ear?
No. Both can be silver and fuzzy, but they are different plants. Rose campion has magenta or white flowers on upright stems. Check the botanical name.
Is rose campion the same as mock orange?
No. Mock orange is Philadelphus coronarius, a shrub. Rose campion is the silver-leaf cottage perennial.
What is the difference between campion and catchfly?
The names overlap across related plants. Use the botanical name to know whether you bought rose campion, Maltese cross, ragged robin, or another catchfly.
Recommended plants
More first-season notes by plant are gathered in How to Grow Guides.
Updated: Reviewed by Bosquelle Editors