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Description and photos of trees for summer-dry gardens

15 02, 2024

x Chiranthomontodendron lenzii: What’s in a Name?

2024-02-15T07:45:35-08:00Categories: Blog, Nora Harlow, shrubs, trees|Tags: , , |

It’s a mouthful. x Chiranthomontodendron lenzii, the hybrid monkey hand tree, is the result of an intergeneric cross between the Mexican monkey hand tree, Chiranthodendron pentadactylon, native to Guatemala and adjacent parts of Mexico, and the flannelbush cultivar Fremontodendron ‘Pacific Sunset’. The latter is itself a cross between F. californicum, native primarily to California, and F. mexicanum, native to northern Baja California and adjacent parts of San Diego County. Distinctive flowers and leaves of x Chiranthomontodendron lenzii, hybrid monkey hand tree As are its parents, the hybrid monkey hand tree is best known for its distinctive flowers,

22 12, 2023

Fruitless Olives?

2023-12-22T07:13:49-08:00Categories: Blog, Nora Harlow, shrubs, trees|Tags: , , |

To aficionados of olives and olive oils planting fruitless olive trees may seem a pointless exercise. Yet there are good reasons to include these well-mannered trees and shrubs in summer-dry landscapes. Olives need little summer water and they blend well with other summer-dry plants. With a history going back thousands of years in the Mediterranean region and hundreds of years in summer-dry parts of the Americas, olive trees instantly evoke, on sight, nostalgic associations with sunny summer-dry lands. Fruitless olives do the same without the mess. Olea europaea 'Wilsonii' at Huntington Botanical Gardens Fruitless olives are cultivars

23 10, 2022

Ginkgo

2022-10-24T19:44:53-07:00Categories: Blog, Nora Harlow, shrubs, trees|

My neighbor's ginkgo tree (Ginkgo biloba) is coloring up again, bright yellow now, headed for screaming saffron. I don't know why it still surprises me, this always welcome yet somehow unnerving contrast against the dark green coast live oaks and bays that dominate my garden. This ginkgo was planted more than thirty years and three neighbors ago and its fall transformation still takes me by surprise. Fall colors of Ginkgo biloba in the San Francisco Botanical Garden Usually planted for its stunning fall color, Ginkgo biloba is attractive and interesting at any time of year. Long-lived

29 06, 2022

Shrubby Tanoak

2022-06-29T13:42:15-07:00Categories: Blog, California Native, Nora Harlow, shrubs, trees|Tags: , , , |

Tanoak or tanbark oak (Notholithocarpus densiflorus var. densiflorus) is a large evergreen tree with deep green, leathery, oblong leaves with prominent veins, sometimes wavy edges, and often toothed margins. The small, creamy white, late-spring flowers are held in showy clusters of narrow, stiffly upright or outstretched catkins. The leaves and flowers resemble those of American chestnut (Castanea americana) and the fruit is an oaklike acorn with a shallow, bristly cap. New leaves of shrubby tanoak (Notholithocarpus densiflorus var. echinoides) Tanoaks are interesting and attractive at all times of year, but they are quite slow growing and they eventually

5 04, 2022

Oaks for Small Gardens

2022-08-07T15:14:42-07:00Categories: Blog, California Native, Garden Plants, Nora Harlow, trees|Tags: , , , |

Native oaks are larval hosts for more kinds of butterflies than most other plants, and caterpillars are the primary food that nesting birds can feed their young. This makes oaks one of the best choices for supporting butterfly and bird populations and encouraging both to make their homes in your garden. Quercus durata, leather oak Where does that leave those whose gardens are too small for a full-sized oak? At maturity, most oaks become large to very large trees. California's valley oak, Quercus lobata, is the largest North American oak, in time reaching 75-100 feet tall and

8 10, 2021

Parrotia persica

2021-10-09T09:16:47-07:00Categories: Blog, Garden Plants, shrubs, trees|Tags: , , , |

A connoisseur's tree, Parrotia persica or Persian parrotia offers a virtual kaleidoscope of colors and textures from one season to another and over the years. Through the seasons the deeply veined, serrated, broadly oval leaves of this deciduous, multitrunk or low-branching tree turn from spring's bronzy purple to summer's rich green to a sometimes astonishing fall combination of reds, oranges, yellows, and even pinks. Individual trees can vary widely in their fall display, and not every year brings the exact same colors at the same times on the same tree. Parrotia persica leaves in fall color Adding to

23 07, 2021

The Carbon Capture Garden

2021-07-23T17:07:40-07:00Categories: Blog, carbon capture, grasses, Nora Harlow, perennials, shrubs, trees|

Carbon capture is widely viewed as a promising means of slowing global warming by reducing levels of atmospheric carbon dioxide, one of a number of gases responsible for trapping heat and warming the earth’s surface. Carbon dioxide produced by industrial processes can be captured at its source and injected underground. Atmospheric carbon dioxide is naturally taken up by plants, which transform the gas into a form that can be stabilized and stored in soil. Carbon capture is maximized by a diverse planting of deeply rooted trees, shrubs, and perennials, minimally pruned, with no pesticides and soil left undisturbed as

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