Happy & healthy plants shipped right to your doorstep.

Your dream garden is just a few clicks away. All orders $159+ ship for FREE (*Exclusions Apply)

Free Shipping On Plant Orders $159+

Giant Cobalt Blue Grape Hyacinth

Muscari 'Cobalt Blue'
$2489 $2999
  • Out of stock
  • Stay Protected with Plant Sentry ™
Plant Size

Plant Sentry™

Plant Sentry is designed to protect both consumers and the nursery trade from invasive plant pests and diseases. Sites that display the Plant Sentry protection badge are protected from consumers buying and nurseries shipping material carrying invasive pests and diseases.

This proprietary eCommerce software prevents the shipment of a restricted plant to each state. The Plant Sentry system includes a shipment certification program. The Plant Sentry Compliance Officer works closely with NatureHills.com and each nursery or fulfillment center to ensure only compliant plants are sold to customers.

Click Here to learn more

 

Plant Sentry

Delivery and Shipping

Shipping

To obtain a more accurate shipment time-frame, simply enter your zip code in the “Find Your Growing Zone” box to the right. Our plants are grown all over the country and lead time on items may be different because of this. Once your order is placed, you will also receive the specific shipment time-frame information as part of your order confirmation. Once an item ships, you will receive shipment notification and tracking numbers, so you can follow along while your plant travels to your doorstep. We use FedEx, UPS, or USPS at our discretion.

 

Due to winter weather we have put a hold on shipping to the areas shown below in grey. You can still order now and we will ship the plant to you during an appropriate time for your zone.

*If you have found your zone already, it will be highlighted in the table below.

Standard Shipping Rates

At Nature Hills we handle, package and ship the products you order with the utmost care to ensure healthy delivery. Shipping and handling charges are calculated based on the tables below. Please note that some items include an additional handling surcharge, these will be noted on the item's product page.

From To S&H
$0 $19.99 $24.99
$20 $49.99 $29.99
$50 $69.99 $34.99
$70 $99.99 $39.99
$100 $129.99 $44.99
$130 $149.99 $48.99
$150 $150+ Approx 28%

Click here to see our full rates

Plant Highlights

Giant Cobalt Blue Grape Hyacinth highlights at a glance!

Plant Highlights

  • Botanical Name
    Muscari 'Cobalt Blue'
  • Growing Zones
    4-10
  • Mature Height
    10 - 14 inches
  • Spacing
    3 inches
  • Sun Exposure
    Full Sun
  • Moisture
    Medium
  • Soil
    Well Drained Soil
  • Growth Rate
    Fast
  • Flower Color
    Dark Blue
  • Pollinator Friendly
    Yes
  • Pruning Time
    After Foliage Yellows

Bold beauty in a small containable size! The Giant Cobalt Blue Grape Hyacinth (Muscari 'Cobalt Blue') are dramatically pure cobalt blue spires packed full of bell-shaped blooms along the entire little stem! These fragrant blooms start opening from the bottom up, forming a slight white edge to the petals as they mature.

Muscari are typically a demure blooming bulb plant but Giant Grape Hyacinth can reach 10-14 inches in height! Keeping the family's bunching and naturalizing nature and spikey short slender green foliage look great long after the spring display unmatched by any other Muscari variety.

This brings unique delight in the spring and food for pollinators! Giant Cobalt Blue Grape Hyacinths are cold and heat-hardy throughout USDA growing zones 4 - 10, forming tidy little bunches that expand each year, these perennial bulbs are incredibly easy to grow and very low maintenance!

Planting and Application:

Cobalt Blue Muscari is a great choice for almost any low-lying purpose. Adding one more front layer of color to your spring garden, these flowers are happy to oblige. An absolute must-have garden gem for the Rock gardens, Cottage gardens, and look luxurious in spring ephemeral borders! Amp up this dramatic blue hue by planting in groups and among other Muscari varieties! They spread and fill in, so give them about 4 inches between bulbs to do so.

Indoors, you can force these incredibly vibrant blue bulbs in a shallow dish or container for winter décor! They add delicate delight to floral arrangements or container gardens, and they have a pleasant scent. Create incredible container gardens with these vertical thrillers, even a window box or planter will become fanciful with these additions! Any sunny patio planter, balcony, or terrace garden becomes something spectacular!

  • Stunning Fragrant Clusters of Dark Cobalt Blue Flowers
  • Spring Blooms & Green Foliage Clumps
  • Easy to Grow Naturalizing Perennial Bulbs
  • Pollinator-Friendly & Amazing Cut Flowers
  • Great in Containers, Front of the Border, Spring Color & En Masse

#ProPlantTips for Care:

Muscaris are easy to grow! They like early spring rains and water when the skies don't open up. While these bloom best in full sun, planting them under trees can be a great idea as the bulbs will bloom before the trees leaf out. Then, once the blooming is done, the shade of the trees can protect the bulb's foliage, giving the bulb more energy for next year's stunning blossoms! Fall-planted bulbs need well-drained soil with moderate moisture needs. Any soil type is suitable so long as it is not soggy and add bulb fertilizer to each hole for best results. Their blooms last for weeks and they naturalize and spread over time unless you deadhead after the flowers fade.

  • Full Sun For Strongest Growth
  • Well-Drained Soil
  • Moderate Moisture Needs
  • Deadhead After Flowers Fade & Prune Mounds After Leaves Yellow
  • Deer Seldom Bother Them

Big blue and bold, the Giant Cobalt Blue Grape Hyacinth will add incredible depth and drama to your garden! Be the first on the block to enjoy these large Muscari and incredibly blue bulbs are now available at Nature Hills! We will ship your bulbs based on the correct planting time for your growing zone!

Giant Cobalt Blue Grape Hyacinth Close Up

Giant Cobalt Blue Grape Hyacinth

$2489 $2999

Growing Zones

4-10

Mature Height

10 - 14 inches

Mature Spread

N/A

Sun

Full Sun

Foliage Color

N/A

Fall Color

N/A

Flower Color

Dark Blue
View product

Find Your Garden's Growing Zone!

Error, Unable to locate a growing zone for that ZIP code.

When ordering a tree or plant, make sure to know your planting zone.

You can determine your garden’s USDA hardiness zone by entering your Zip Code below.