Product Field NotesCompanion Plants
Purple Illusion Speedwell: Bold Purple Spikes on a Compact Plant
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Purple Illusion spike speedwell packs thick, rich purple flower spikes onto a compact plant about 16 to 18 inches tall and wide. Its dark green leaves form a dense canopy, so it still looks full and substantial after the flowers fade, which is more than many speedwells can say.
The spikes are a near-match for lavender's shape and color. Planted at the edge of a lavender bed, it reads like a lavender that decided to bloom a little later and a little deeper.
Purple Illusion at a glance
| Trait | What to expect |
|---|---|
| Botanical name | Veronica 'Purple Illusion' |
| Flowers | Rich purple, on thick, tapering spikes about 4 to 7 inches long |
| Foliage | Dark green, lance-shaped, dense canopy |
| Size | 16 to 18 inches tall and wide |
| Bloom | Starts mid-June, peaks mid-July, about five weeks |
| Hardiness | USDA zones 4 to 8 |
| Light | Full sun to part shade |
| Wildlife | Excellent for bees and butterflies; deer resistant |
Purple on purple, with a twist
Some lavender companions contrast; Purple Illusion harmonizes. Its stiff, upright spikes echo lavender's form, but its foliage is darker green and denser, so the two still look distinct. Set a few plants in front of a lavender hedge, and the purple seems to deepen as it steps forward. For contrast, mix in round flowers like coneflowers or yarrow nearby.
The one difference to respect is water. Speedwell wants soil that does not stay dry for long, while lavender would rather go without. Give Purple Illusion the outer edge, where a hose can reach it without soaking the lavender. The Companion Plant Planner makes spacing easy.
Getting more spikes
Each plant blooms for about five weeks. To stretch that, follow each faded spike down to the next pair of side buds and cut just above them. New spikes grow from those buds. Remove spent stems entirely in fall or early spring.
Care checklist
- Soil: average and well drained, not left dry for long stretches.
- Heat: fine in full sun with steady moisture. In hot, dry spells bloom slows and lower leaves may brown.
- Mildew: space plants for airflow to reduce powdery and downy mildew.
- Dividing: divide crowded clumps every few years in spring.
- Winter: hardy in Michigan within its zones. Site it in well-drained soil to avoid winter crown rot.
Plug tray or bare root
Purple Illusion is offered as a 72-cell plug tray for edging and growers, and as a bare root plant for direct planting. It also works well in containers. See each product page for current availability.
Frequently asked questions
Is Purple Illusion good for cutting?
Yes. The spikes are good cut flowers and dry fairly well.
How is it different from Purple Leia?
Purple Illusion is compact, about as wide as it is tall. Purple Leia is a taller, narrower, columnar plant for adding height.
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