Product Field NotesCompanion Plants
Rapido Blue Bellflower: Early Blue Cups at Lavender's Edge
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Rapido Blue Carpathian bellflower is one of the earliest Carpathian bellflowers to bloom, flowering up to four weeks ahead of older types. It forms a neat little clump only 5 to 7 inches tall, and at peak the dark green leaves almost disappear under wide, upward-facing cups 1.5 to 2 inches across, violet blue with a lighter center and fine darker veins.
It also flowers in its very first year, which is a nice reward for a small plug.
Rapido Blue at a glance
| Trait | What to expect |
|---|---|
| Botanical name | Campanula carpatica 'Rapido Blue' |
| Flowers | Violet-blue cups with a lighter center, 1.5 to 2 inches |
| Foliage | Small, dark green, finely toothed |
| Size | 5 to 7 inches tall, 5 to 8 inches wide |
| Bloom | Starts early June, peaks late June, long blooming with deadheading |
| Hardiness | USDA zones 3 to 8 |
| Light | Full sun to part shade |
| Deer | Resistant |
A low blue line in front of lavender
Lavender beds often have a bare strip at the front edge where the mounds do not quite reach. Rapido Blue is small enough to fill it without crowding anything. A row of violet-blue cups at ground level, with lavender's purple spikes rising behind, makes a layered blue-on-purple look in June.
It handles sun and drainage like lavender, but it is not quite as drought tough, so plan on watering it during long dry spells. Planting it at the outer edge makes that easy without soaking the lavender. Try the layout in the Companion Plant Planner.
Planting and care
- Site: full sun to part shade in moist, well-drained soil.
- Heat: a little afternoon shade during hot spells lengthens the bloom.
- Deadheading: snip off spent flowers regularly to keep it blooming through much of summer.
- Pests: slugs and snails like the leaves and flowers; check after rainy nights.
- Dividing: divide in spring every few years if the center thins.
Winter care
Rapido Blue is hardy in Michigan as long as its crown stays dry over winter. Plant it in well-drained soil, avoid heavy mulch on top of it and tidy the foliage in spring. Crown and root rot in soggy ground are its main problems, the same weakness lavender has.
Other places it fits
It is a natural for rock gardens, the cracks along a stone wall and small containers, anywhere its open blue cups can be enjoyed up close. A few pots on a sunny step beside potted lavender look charming.
Frequently asked questions
Will it bloom the first year?
Yes. It does not need a cold period to flower, so young plants bloom their first season.
Is it good for cutting?
No. The stems are very short. It is best enjoyed in the garden or in a small pot.
How is it offered?
As a full 72-cell plug tray, a good number for edging long beds. See the product page for current availability.
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