Gladiolus Blue Isle

Blue Isle Gladiolus boasts Dark blue-purple flowers. It is an excellent variety for commercial cut-flower growers. Beautiful and long-lasting color for floral arrangements, this glad is also ideal for the back of a sunny border where it will rise and shine above lower-growing perennials and annuals.

Hardiness Zones 3-10. Lift in Fall in zones 3-7
Mature Height 36 - 48 inches
Bloom Time Mid to late summer (July - Aug)
Light Requirements Full Sun, Half Sun / Half Shade
Ship As10-12 CM Bulb
Deer Resistant
Cut Flower

We ship this item in Spring

Botanical Name: Gladiolus 'Blue Isle'

Availability: Backordered

SKU: #01205

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Product Details

Restricted States US:
AE AK GU HI PR VI
Botanical Name:
Gladiolus 'Blue Isle'
Ship As:
Bulb
Size:
10-12 CM
Lift In Fall:
3-7
Suggested Uses:
Borders, Bouquets, Cut Flowers, Naturalizing, Showy Flowers, Deer Resistant, Attract Pollinator

Flower Color:
Purple
Flower Form:
3-4" wide florets carried along 1 side of the robust stems, 10-12 are open at a time.
Foliage Type:
Long strap-like leaves, medium green in color.
Mature Spread:
4 - 6 inches
Spacing:
4 - 6 inches

Growing Tips

Planting Instructions:
4" deep and 4-6" apart
Soil Moisture:
Well drained
Will Tolerate:
Acidic Soil, Clay Soil, Loamy Soil, Sandy Soil
Pruning Instructions:
Only to cut back spent flower stems.

Winter Care:
Lift in fall if you live in zones 3-7 for winter storage. Replant the following spring after frosts are over.
Planting Depth:
4" deep
Watering Requirements:
Average water needs. Water regularly, do not overwater
Fertilization Requirements:
Once per year
Special Care:
Not needed.

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Shipping Information

K. van Bourgondien times its shipments from Holland so that bulbs and bareroots arrive at the proper planting time (depending on climatic conditions) for each area of North America.

We take advanced orders, and as the crops are harvested, our staff of K. van Bourgondien experts makes an on-the-spot selection of the finest bulbs available to fill those reservations.

We will pack and ship your order based on the following schedules. The type of product you order or the weather may affect the anticipated shipping schedule. Please note that we cannot ship outside of the 48 contiguous states. What zone am I in?

Spring 2025 Shipping Schedule

Bulbs and Bareroot
Zones	Shipping Dates	Last Order Date
3A-5A	4/28/25 - 5/30/25	5/26/25
5B	4/7/25 - 5/30/25	5/26/25
6A	3/24/25 -5/30/25	5/26/25
6B	3/10/25 - 5/30/25	5/26/25
7A	2/24/25 - 5/30/25	5/26/25
7B-8A	2/17/25 - 5/9/25	5/5/25
8B-9A	2/10/25 - 5/9/25	5/5/25
9B-11B	2/3/25 - 5/9/25	5/5/25

Shipping Notes:

In all cases, we choose the fastest, most efficient way to send your orders via USPS or FedEx.

Orders for gift certificates will be shipped immediately.

Due to hot weather conditions, we are unable to ship any plant items from late June through August. General merchandise will be shipped with your plant order.

Upon placing your order, you will receive an email confirmation with the details of your order and a shipping estimate. You will also receive an email notification when your order actually ships with an updated arrival estimate. If you have ordered multiple items, you may receive them in more than one shipment. We will send you a separate email confirming each shipment. Large orders may be shipped in more than one package. Your order confirmation will have an estimated shipping time.

You may check your order status at any time on this website using your email or account number provided on your order confirmation.

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