Coral Haze hosta with coral pink foliage in a shaded border - full clump in shade
Coral Haze Hosta Bulbs Price range: $36.99 through $80.99
Back to products
Onyx Chalice hosta with near-black deep purple foliage - full clump in shade
Onyx Chalice Hosta Bulbs Price range: $36.99 through $80.99

Cobalt Drift Hosta Bulbs

Price range: $36.99 through $80.99

Broad cobalt-blue leaves with a violet iridescence that shifts as the light moves across them.

SKU: SIL-COBALTDRIFT Categories: ,

Why gardeners plant Cobalt Drift

Cobalt Drift carries some of the deepest blue colour we grow. The leaves are wide and rounded with heavy substance, and a violet sheen sits on top of the blue so the clump changes tone from morning to evening.

A closer look

Because the leaves are thick, they resist scorch and hold up late into autumn. Give it a spot with morning light and afternoon shade for the strongest colour.

At a glance

Botanical name Hosta (shade perennial)
Leaf colour Cobalt blue with violet iridescence, glossy
Leaf size Large — 8–9 in long
Mature height 20 in
Mature spread 36 in
Light Part shade
USDA hardiness Zones 3–9
Bloom Midsummer, lavender on 26 in scapes
Spacing 30–36 in
Soil Moist but well drained, rich in organic matter, pH 6.0–7.0
Planting depth Crown 1 in below soil level, eyes up
Dormancy Dies back after first frost, returns every spring

What actually arrives

You receive one dormant bare-root division — a root crown with 1–2 visible eyes and fleshy storage roots, packed in moist peat inside a breathable bag.

Hostas are not true bulbs. There is no papery tunic and no basal plate, so do not expect an onion-shaped bulb: what ships is the crown the grower lifts and grades. Dormancy is when a hosta travels best, and it is completely normal for the roots to look dry and leafless on arrival.

How to plant

  1. Unpack on arrival and soak the roots for 30 minutes.
  2. Dig a hole wide enough to spread the roots flat, about 4–6 in deep.
  3. Set the crown 1 in below soil level with the eyes pointing up.
  4. Backfill, firm gently, water in thoroughly.
  5. Top-dress with compost. No fertiliser in the first season.

Shipping & guarantee

Ships within 5–7 business days. Transit 8–25 business days. 30-day growth guarantee — if the division fails to break dormancy, we replace it.

Hostas are browsed by deer and rabbits. In high-pressure areas, plant inside a fence or use a repellent from emergence.

Bulb Quantity4 bulbs, 6 bulbs, 8 bulbs, 10 bulbs, 15 bulbs

Reviews

There are no reviews yet.

Be the first to review “Cobalt Drift Hosta Bulbs”

Your email address will not be published. Required fields are marked *

Dormant bare-root hosta divisions grown by Silvarara.

Ships within 5-7 business days, with 8-25 business days in transit after dispatch.

  • Free shipping on orders over $75
  • Flat $6.95 on orders under $75
  • Orders are packed in the order they are received

Bulbs ship dormant and dry on purpose - damp packing in transit is what rots them. Keep them cool (40-50F), dark and dry, and plant within two weeks of arrival.

Read the full Shipping and Delivery policy

RELATED PRODUCTS