Archive for the ‘Summer flowering’ Category

Torch Lily Has Long Bloom Life

Torch lily (Kniphofia spp.), aka “red hot poker”, is an easy to grow long-lived perennial from South Africa. Its colorful floral spike (and a little imagination) resembles a fiery torch or sizzling poker, visited often by hummingbirds, bees and butterflies. New cultivars are mostly hybrids and vary in plant height and flower color. Starting in […]

To Grow Crocosmia Or Not?

This South African native, also called ‘montbretia”, thrives in full sun in  well-drained average garden soil. A richly composted soil tends to boost foliage size and bloom count, but often weakens bloom stems, requiring some staking. Crocosmia may struggle in a wet soggy wintry soil. Established plants are exceptionally summer heat and drought tolerant. Brightly colored […]

Panicled Raintree Promises Showy Lantern Pods

Chinese flametree (Koelreuteria bipinnata) is also called bougainvillea raintree. This rare tree, available primarily from internet nursery commerce, deserves to be planted more. It has performed well in the Southern Appalachian region (USDA zones 6-b and 7) and is questionably hardy further north. Flametree is less popular in Southeastern landscapes than goldenrain tree (K.paniculata). Low branching […]

Summer Blooming Oyama Magnolia

A friend on vacation sent me the attached photo from Wooster, Ohio.  When I told him that it was Oyama magnolia (Magnolia sieboldii), he asked why gardeners are not growing it. Good question! Oyama magnolia is a 10-15 feet tall (and equal spread) deciduous tree or large shrub from eastern Asia. It prefers to grow […]

Invite Sonata Cosmos Into Flower Beds

Over the past few years a flower bed containing cosmos (Cosmos bipinnatus) has become a rare sight across the Southern Appalachian region (USDA zones 6 and 7).  Not so, at the recently visited BuGa National Gardening Show 2011 in Koblenz, Germany. Called by some “Mexican asters”, cosmos produces big 3- inch wide red, white, pink […]

Tough And Reliable Chinese Astilbes

Astilbes (also called “false spireas”) are favorite late spring flowering perennials.  The Astilbe x arendsii hybrids from Germany are most popular and available at local garden centers. Astilbes are very hardy in the Southern Appalachian region (USDA zones 6 and 7). If low maintenance is your goal, try Chinese astilbe (Astilbe chinensis var tacquetii). Their […]

Rosebay Rhododendron for Cool Shady Landscapes

Rosebay Rhododendron (Rhododendron maximum) grows in dense woodland shade along cool mountain streams and on moist, rocky slopes. This Southern Appalachian native is extremely winter hardy to -15° to -20° F. It is a late-season bloomer reaching its peak around late June. Rosebay grows large, 15 to 20 feet in height. On some sites it […]

Flaming ‘Fireball’ Hibiscus Quite A Summer Show

  ‘Fireball’ hibiscus (Hibiscus x moscheutos ‘Fireball’) is a vigorous hardy perennial with burgundy tinted cutleaf foliage and huge 10-12 inch clear red flowers from mid-summer to late summer. Plant height is 4 – 5 feet and 2 – 3 feet in width. A strikingly beautiful plant, ‘Fireball’ thrives on heat and humidity. It wants full […]

Summer Pruning of Oakleaf and Bigleaf Hydrangeas

Bigleaf or “mophead” hydrangeas (Hydrangea macrophylla) tend to get tall and leggy, and outgrow their garden space. Our native oakleaf hydrangeas (Hydrangea quercifolia) are pruned as blooms quality declines. Remove or “deadhead” all withered or faded flowers. Main pruning time for these two species is from mid-June thru mid-August. Mopheads may rebloom if they had […]

Leather Flower Clematis- Hot Pink Summer Flowering Vine

Leather flower (Clematis glaucophylla) is native to moist woodlands in the Southeastern U.S. This lovely flowering vine is covered with one inch hot pink flowers tipped in yellow. The solitary, 1- inch bell shaped flowers are on 6- inch long stalks which reach out for support. It is called “leather flower” because the petals are […]