What's in Bloom

Bloom Highlights

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Sources for "What's in Bloom: Bloom Highlights" listings include the Chicago Botanic Garden's staff and database, as well as the publications and records of other botanic gardens, institutions, and the scientific community.

Allium 'Globemaster'

Globemaster Onion

Globemaster is an upright bulb that grows to a maximum height of 30 inches. It requires full sun and well-drained soil with dry to moderate moisture. In May it produces long lastig globes of 6- to 10-inch lavender blooms that attract butterflies. This ornamental onion is resistant to deer and can be used in a border.

Paeonia 'Harvest'

Harvest Peony

‘Harvest’ is a tree peony with a stunning 3-inch flower, starting as pale orange and maturing to a warm yellow. The young foliage has a reddish cast. Tree peonies often need to settle in for one to two years before producing flowers and, once established, will grow to mature size of 5 feet in five to eight years. Plant in sun to part shade with the eyes no more than 2 inches below the soil surface and protect from strong winds and afternoon sun. Deer resistant.

Peonies are popular garden plants known for their stunning flowers, their cold hardiness, and the huge variety of their colors, forms, and habits. They are divided into two main groups: herbaceous, which die to the ground in the fall; and tree peonies, which are deciduous plants with woody stems that they retain throughout the winter. A third category—the Itoh or intersectional peonies—display the extravagant blooms of tree peonies on herbaceous stems. All peonies bloom between April and June. Flowers on tree peonies appear one to two weeks before those on herbaceous peonies.

Camassia leichtlinii

Leichtlin Camass

Camassia leichtlinii goes by the common name of leichtlin camass or great camass. Two subspecies of Camassia are found in North America. Subspecies leichtlinii is pale yellow and has the most restricted range, while subspecies suksdorfii is known for its blue-to-violet flowers and can be found from British Columbia south to California.

Camass was a favorite of Native Americans, who roasted it in pits to create a dish that looked and tasted very similar to sweet potatoes, but which contained a granular inulin component. Before roasting, please ensure you can tell the difference between Camassia and the very similar-looking bulbs of the aptly named "death camass" (Veratrum species).

Clematis 'Nelly Moser'

Nelly Moser Clematis

Nelly Moser is an early, large-flowered clematis with single, pinkish-mauve petals with darker central bands and red anthers, giving the flowers the effect of pale pink stripes in early summer, fading in hot sun. It is a dependable, showy vine.

Chionanthus retusus 'Tokyo Tower'

Tokyo Tower Fringetree

Spring brings cascades of white, thinly petaled flowers on this very upright selection of the oriental fringe tree. Upon maturity, the fruit turn blue, contrasting nicely with the golden yellow fall color. With age, the bark on the trunk begins to exfoliate, revealing contrasting tan and gold colors. Plant 'Tokyo Tower' in full sun and in moderately rich soils.