When ship to my zone?

Shipping Schedule

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?

Fall 2024 Shipping Schedule

Bulbs and Bareroots
Zones	Shipping Dates	Last Order Date
3A - 6B	9/2/24 - 12/6/24	12/2/24
7A - 11B	9/23/24 - 12/6/24	12/2/24

German Iris
Zones	Shipping Dates	Last Order Date
3A - 6B	8/5/24 - 11/01/24	10/28/24
7A - 11B	8/19/24 - 11/8/24	11/4/24

Amaryllis and Paperwhites
Zones	Shipping Dates	Last Order Date
3A - 11B	9/30/24 - 12/20/24	12/16/24

Hibiscus
Zones	Shipping Dates	Last Order Date
3A - 6B	10/7/24 - 11/15/24	11/11/24
7A - 11B	10/7/24 - 11/22/24	11/18/24

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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Siberian Iris

Adding Siberian Iris to your garden design is sure to enchant visitors with their unique floral display. No matter which variety of combinations and mixtures of Siberian iris bulbs you choose, they all produce gorgeous blooms. Shop today!

Siberian Iris for Sale

Some of the easiest irises to grow, Siberian Iris offer delicate flowers and graceful stems and foliage. While a favorite for planting near ponds and streams, they also add stunning color to perennial beds. At K. van Bourgondien, we've been supplying gardeners with top-quality flower bulbs for over 175 years, and we offer one of the best collections of Siberian Iris bulbs for sale. Many have very unique, intricate flowers that invite garden visitors to take a closer look and are very showy cut flowers.

Planting Siberian Iris

Siberian Iris are hardy plants, growing in zones 3-9. When selecting a place to plant Siberian iris bulbs, look for a space that is in direct sun or partial shade (4 or more hours of direct sunlight daily). They prefer slightly acidic, moist, well-drained soil, but will tolerate wet soil. Siberian Iris look best when planted in groups of three or more.

How to Plant Siberian Iris

Siberian Iris bulbs are planted in the spring. To ensure the best selection, many gardeners buy Siberian Iris in the winter or early spring. Before planting, mix compost into the soil to improve the soil. Dig a hole large enough to accommodate the rhizome. Plant the rhizome so the eyes are just below the surface. Space Siberian Iris about 18-24 inches apart. Water after planting.

Siberian Iris are low-maintenance, deer-resistant perennials and have few disease and pest problems. To keep them looking their best, fertilize them once a year with an all-natural, slow-release fertilizer like Van Bourgondien 100% Natural Perennial Food.

When Do Siberian Iris Bloom

Siberian Iris bloom in the early summer, after German Iris and Dutch Iris. Many iris lovers plant Siberian Iris bulbs to extend the iris season.

When to Divide Siberian Iris

Siberian Iris will form large, well-established clumps, usually several years after planting. While division isn't always necessary, watch the plants. If the plants become crowded or if the flowering decreases, then plan to divide your Siberian Iris plants.

When to Transplant Siberian Iris

The best time to divide and transplant Siberian Iris is either in early spring when the plants are just starting to show signs of growth or the summer, immediately after the plants flower. After dividing Siberian Iris, keep the roots moist until transplanting.