Muscari: Plant Care & Growing Guide

Jan 9, 2023 | 0 comments

The name “grape hyacinth” (also known as “Muscari”) refers to a small spring-blooming bulb with tightly packed flower clusters that resemble grapes. It is now thought that the Muscari genus belongs to the Asparagaceae, or asparagus family, rather than the Liliaceae family, which also includes real hyacinths. Look at other family members to find out if there are any outward similarities: All three asparagus, lily-of-the-valley, and brodiaea lily species have flowering umbels that develop from a central stem.

Grape hyacinths are workhorses that may brighten the early spring flower garden for years without much care. They are native to Europe and Asia. Grape hyacinths grow slowly and do best when planted in the fall. They emerge and bloom the following April or May and last for about three weeks.

Many different grape hyacinth cultivars exhibit the unusual crystal blue color that so many gardeners desire, yet they lack the fussiness of certain other blue flowers. There are additional hues available; the white, pink, and yellow grape hyacinth cultivars offer a welcome contrast when grown alongside the blue kinds.

Care for Muscari

Muscari: Plant Care & Growing Guide

Although grape hyacinths are small, they make up for it in beauty and ease of maintenance. Grape hyacinths may usually be planted in the fall and left alone for several months until they burst forth and brighten an otherwise dull early-spring environment.

Circular green seed pods that can last well into the summer will be produced by your grape hyacinths once they have done blooming. When the blooms are completed, remove these pods to allow the plant to focus its energy on the flowers of the following year. When the foliage begins to turn yellow, you can shear it as well.

Grape hyacinths also produce a burst of grass-like foliage late in the summer or early in the fall, unlike many spring-blooming bulbs. Till the plants have finished blooming the following spring, these leaves should be left in place. This foliage aids in the plant’s nutrition; it is only acceptable to remove the leaves until new foliage reappears during the summer hibernation.

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While it may tolerate little shade, grape hyacinth thrives in direct sunlight. Remember that many locations that are shaded in the summer are actually quite sunny in the spring before the neighboring trees have leafed out. These are excellent locations to plant grape hyacinths and other spring bulbs.


Plant grape hyacinth in any area of your property with well-drained soil for the best results. Although grape hyacinths prefer slightly sandy soil, they thrive in all but the soggiest mixtures. Furthermore, grape hyacinth is not at all particular about the pH of the soil.


While grape hyacinths prefer some moisture in the spring, as the season goes on, their soil should be let to gradually dry out. In the months when they aren’t in bloom, this helps to avoid bulb rot problems.

Thermodynamics and Humidity

Within the USDA hardiness zone range, grape hyacinths thrive in all types of weather. Unusually mild winter temperatures, however, could prevent them from blooming the next spring because they need a chilly winter period in order to do so.


Healthy grape hyacinths don’t require any fertilizer, although they can benefit from an autumn application of 1/4 cup of bone meal (per 100 square feet of soil).

varieties of Muscari

Muscari: Plant Care & Growing Guide

There are various variations on the classic deep blue cluster shape of grape hyacinths, and you can check in specialist bulb catalogs for rare or heirloom kinds. It is beneficial to get bigger, more expensive grape hyacinth bulbs because they are reasonably priced. In contrast to the two or three flower stalks generated by inexpensive bulbs, they will produce four or five flower stalks per bulb. Some popular varieties are “Album,” a pure white variety that goes nicely with blue grape hyacinth, “Blue Magic,” an heirloom variety with fragrant periwinkle blue petals, “Feather Hyacinth,” and “Mount Hood,” a bicolor variety with a brilliant blue body and a white head.

Grape Hyacinth From Bulbs: Growing

The optimum time to grow grape hyacinth is in the fall, just like with most spring-flowering bulbs. Grape hyacinth bulbs will rot if planted in an area with consistently moist soil, so pick a location with ordinary soil that drains well.

The simplicity of planting this bulb is one of its enticing qualities. The bulbs should be placed roughly 3 inches apart and 3 inches deep. A substantial drift can be installed in under an hour by digging out a spade’s worth of soil and planting a few bulbs at a time. Over time, grape hyacinth bulbs grow into ever-larger colonies, yet the plants are not invasive.

Grape hyacinths, like the majority of small flowering bulbs, look their best when planted in huge numbers. For a modest garden, start with a cluster of at least 25 plants. Plant drifts of at least 100 in the flower garden or dispersed beneath trees and shrubs in an average-sized suburban garden.

Grape Hyacinth Repotting and Potting

Purchasing enough grape hyacinth bulbs to force some to bloom indoors in containers is an additional choice. The refrigerator is the ideal place to keep your grape hyacinth bulbs because they need around 10 weeks of chilling (at minimum temperatures of 40 degrees Fahrenheit) to get ready to bloom. 22 to 24 weeks before you want the bulbs to blossom, schedule the start of the cool phase.

For flowering in late January through March, refrigerate the bulbs in September through October for about 10 weeks. 12 to 15 bulbs should be planted in a bulb pan or other container that is at least 6 inches in diameter and 6 to 8 inches deep after chilling. Place the bulbs about an inch apart, with the exposed tops sticking up, in moist potting soil.

Once all the bulbs have developed shoots approximately 2 inches long, move the pot to a cold, dark location for about 10 weeks. After that, you can move the pot to a more sunny spot, and flower buds ought to start to form in two to three weeks.

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Typical Insects

Numerous pests and diseases, some more severe than others, could affect grape hyacinth. Aphids and spider mites are usual offenders, but they rarely become noticeable enough to be referred to as a “infestation.” If you see these pests on your plants, you might try using a powerful garden hose to dislodge them from the plant.

Yellow mosaic virus infections are more severe and are frequently identified by a green pattern on the leaves, a reduced stem, or difficulty growing. When these illnesses are discovered on a plant, they should be treated right once since they are frequently transmitted by spider mites that attack the bulb. Yellow mosaic is unfortunate since it usually indicates that the infected bulb won’t survive; all affected plants should be pulled up and destroyed to prevent the spread of the virus.


A little bulb that blooms in the spring and goes by the name “grape hyacinth” (sometimes called “Muscari”) has clusters of flowers that are packed closely together to resemble grapes. The Muscari genus is now believed to be a member of the Asparagaceae, or asparagus family, as opposed to the Liliaceae family, which also includes actual hyacinths. To see whether there are any outward similarities, look at other family members: All three species of brodiaea lily, lily-of-the-valley, and asparagus have flowering umbels that grow from a central stem.

Workhorses, grape hyacinths may beautify the early spring flower garden for years with little maintenance. They originate from Asia and Europe. Slow-growing grape hyacinths thrive when planted in the fall. The next April or May, they emerge and flower for around three weeks.

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