Frequently asked Questions
on
Shade Gardening

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From: Lee Flint - Flint, Michigan - USA - July 18, 1997

Problem: Would like to know more about dividing bleeding hearts, your May Plant of the Month said divide in spring and your other source said spring bloomers should be divided in the fall. I'm confused!

Solution: Dividing spring bloomers in the fall and fall bloomers in the spring is a general rule of thumb and there exceptions. Most of the shade loving perennials are the exception to the rule. But, I agree I didn’t make it very clear. In this case I would follow the Plant of the Month page which says to divide in spring.

Japanese Bleeding Hearts die in mid-summer, so they should be divided in the spring just as new growth has reached 3". The Fringed Bleeding Heart, will live through the year until frost and also should be divided in the spring when there is 3" of new growth.


From: Bruce Pollard - Saginaw, Michigan - USA - May 29, 1997

Problem: Can you suggest any small trees and or shrubs (4 to 20 feet in height) to plant in a shaded understory situation. The plants will receive dappled sunlight with as much as Four hours of direct morning sun. The soil is sandy loam with lots of organic material, neutral ph and an eastern exposure, We have tried rhododendrons with limited success, they seem to get branches dying off and winter browning of the leaves. We are in zone 5. The dominant trees shading the area are White Pines to the west, Austrian Pines to the south and one Maple to the northeast. Thanks!!

Solution:

Here are a few suggestions for a shady site:

Trees

Dogwood - Cornus florida or Cornus kousa - 15-20' White flowers

Red Bud - Cercis canadensis - 15-20' Pink Flowers Very good for understory of mature trees.

Jap. Maple - Acer palmatum 'Bloodgood' - Maroon Foliage 15'

Serviceberry - Amelanchier canadensis - 15-20' White flowers'

 

Shrubs

Old Faithful Taxus - Taxus x media - . An evergreen and tough. 4-10'

Boxwood - Buxus sempervirens - Will not tolerate cold wind. 2-8'

Holly - Ilex species - Many species tolerate shade, ask at local garden center. 2-6'

False Cypress - Chamaecyparis - An evergreen, some are cold intolerant. 3-7'

Buckthorns - - 10'

Japanese Pieris - Pieris japonica - Similar to rhododendrons may not be the best choice.


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