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Siberian Iris Mad Hat

Siberian Iris Mad Hat

If you count iris lovers among your customer base or clientele, make sure you offer Mad Hat as a new garden or landscape selection. This award-winning Siberian Iris was just recently introduced, but we predict it will quickly become a popular choice for borders, cutting gardens or near water features. Fragrant and eye catching, Mad Hat features heavily veined, dark violet-blue falls accented with yellow markings. Pale violet-blue standards perfect the pretty picture. Siberian Iris are lovely perennials that show to their best advantage in groups. We suggest planting several in full-sun to part-shade sites with moist soil for best results. Blooms appear in late spring to early summer.
  • Hardiness Zones 3-9
  • Mature Height 24 - 25 inches
  • Bloom Time Late spring to early summer (June)
  • Light Requirements Full Sun, Half Sun / Half Shade
  • Deer Resistant
  • Cut Flower
  • Naturalizes Well

We ship this item in Spring

Botanical Name: Iris sibirica 'Mad Hat'

#73233

Availability: In Stock

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Product Details

  • Restricted States US:

    AE AK GU HI PR VI
  • Botanical Name :

    Iris sibirica 'Mad Hat'
  • Ship As :

    Bare Root
  • Size :

    NO.1
  • Suggested Uses:

    Borders, Perennializing, Showy Flowers, Water Garden
  • Flower Color :

    Blue
  • Flower Form :

    4" typical Iris-like flowers
  • Foliage Type :

    Slightly arching, narrow grass-like leaves.
  • Mature Spread :

    18 - 24 inches
  • Spacing:

    18 - 24 inches

Growing Tips

  • Planting Instructions :

    Loosen soil well before planting. Plant with the eyes just below the soil. Dig a hole large enough to accommodate the roots without bending them. Space plants 18-24" apart. Firm soil around roots and water well.
  • Soil Moisture :

    Prefers moist soils, but will do also well in regular garden soil with average moisture.
  • Will Tolerate :

    Acidic Soil, Clay Soil, Loamy Soil, Wet Soil, Sandy Soil
  • Pruning Instructions :

    Remove spent flowers for a clean look.
  • Winter Care :

    Mulch +/- 2"
  • Planting Depth :

    Plant with the eyes just below soil level
  • Watering Requirements :

    Average water needs. Do not over water.
  • 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 arrive at the proper planting time (depending on climatic conditions) for each area of North America.

We take advance reservations, and then just as soon 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.


       Spring 2020 Shipping Schedule

  • Bulbs and Perennials
    Zones First Ship Date Last Order Date
    3-4 May 4, 2020 June 1, 2020
    5A March 30, 2020 June 1, 2020
    5B March 16, 2020 June 1, 2020
    6A March 9, 2020 June 1, 2020
    6B March 2, 2020 June 1, 2020
    7 February 24, 2020 June 1, 2020
    8 February 17, 2020 May 11, 2020
    9-10 February 10, 2020 May 11, 2020


  • Tropicals (Elephant Ears and Crinum)
    Zones First Ship Date Last Order Date
    3-6 April 27, 2020 June 1, 2020
    7-10 March 30, 2020 June 1, 2020


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

Shipping Note:

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.

The type of product you order or the weather in our area or yours may affect the anticipated shipping schedule.

Large orders may be shipped in more than one package.

Your order confirmation will have an estimated shipping time.

When your order is actually shipped you will be sent an updated shipping estimate.

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

Please note that we cannot ship outside of the 48 contiguous states.


Click here for zone map.


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