Super Stars Delphinium

Moderate to fast once established; forms strong clumps with thick, upright flowering stems in the second season.

Attracts bumblebees and other pollinators; generally avoided by deer and rabbits due to natural toxicity.

Main bloom late spring to early summer; dependable late-summer rebloom with prompt deadheading and light feeding.

Winter dormant; hardy and long-lived with good crown care and drainage.

– Cottage gardens, mixed perennial borders, cutting gardens, backdrop plantings, and showy focal displays. Excellent for floral arrangements and pollinator gardens.

Deeply lobed, palmate leaves; medium to dark green; forms a handsome, bushy base that sets off the tall, architectural spikes.

Tall, densely packed racemes with large, semi-double to fully double florets.

The ‘Super Stars’ mix covers luminous blues, indigos, purples, lilacs, pinks, and whites; many blooms feature a contrasting “bee” (eye) in white or black.

Stems are thicker than older strains, giving better garden performance and cutting quality.

After the first flush, cut spent spikes down to the first strong basal leaves to encourage a late-summer rebloom.

Remove weak side shoots early to channel energy into primary spikes if you want show bench-worthy stems.

In late fall after frost blackens foliage, cut stems to just above ground level and re-mulch lightly for winter.

Keep evenly moist—about 1–1.5 in (2.5–4 cm) of water per week, more during heat waves.

Water deeply at the base; avoid overhead watering to reduce mildew and foliar disease.

Full sun is ideal (6+ hours). In hotter summer regions, provide light afternoon shade to prevent stress and prolong bloom.

Cut when the lower 1/3 to 1/2 of florets are open; strip lower leaves.

Sear cut ends briefly in hot water or lightly flame to improve vase life; use clean water and preservative.

Typical vase life 5–8 days depending on harvest stage and conditioning.

Heavy feeder: apply a balanced fertilizer in early spring (e.g., 10-10-10), then side-dress with compost or a low-nitrogen bloom booster after the first bloom to fuel rebloom.

Avoid excessive nitrogen, which can cause floppy growth; ensure adequate potassium for sturdy stems.

Nectar-rich spurred florets are primarily visited by bumblebees and other long-tongued bees; occasional hummingbird visits occur.

Not grown for fruit set; seed can form if flowers are not deadheaded, but colors may not come true from seed in a mixed strain.

Peony, rose (shrub or hybrid tea), Campanula, Shasta daisy (Leucanthemum), Phlox paniculata, Salvia nemorosa, Nepeta, Digitalis, Veronica, lilies, and fine grasses like Festuca ‘Beyond Blue’—all emphasize vertical spikes and fill the base, while sharing similar cultural needs.