Planting Under Redwoods

29 Jan

The Bay Area is blessed with many beautiful redwood trees, and the challenge of how best to create a garden under and around these majestic giants is one faced by more than a few lucky gardeners (myself included).

Redwood trees only grow in one area of the world – the west coast of northern California and southern Oregon. In California, there are two different species of redwood. The coast redwood (Sequoia sempervirens) is what you find in Muir Woods as well as many other parts of the Bay area. Though most old-growth coast redwoods were logged many years ago, some are protected and you can view them in Redwood National and State Parks throughout Oregon and California. The forest at Muir Woods was spared because access was difficult for the logging companies.

Northern California urban gardeners are not contending with old growth trees, but second growth redwoods are no less extraordinary a presence in an urban garden space. They grow in fog belt areas, where they can utilize summer fog to fulfill their moisture needs. Redwoods create an environment of dappled to deep shade and damp acidic soil, and their dense shallow root systems present specific challenges for garden creation.

Despite the challenges, there are a number of plants, both native and not, that can be grown successfully under and coexist with redwoods. When planning your redwood garden, there are a few thing to keep in mind: you will need to select plants that can tolerate shade, acidic soil, and also can tolerate some drought due to the redwood sucking moisture out of the soil.
Rather than creating beds, it is best to locate individual plants under redwoods to create an informal, naturalistic woodland garden. Planting holes should be dug carefully so as not to damage the tree’s root system.

Rhododendrons are one large flowering shrub that grows well under redwoods. Rhododendrons love acidic soil and do well in partial to deep shade. Combining rhododendrons with native and other ferns creates a lush natural looking garden space. Here is a list of plants that I have grown successfully under redwoods:

• Lenten Rose (Hellborus)
• Pink Flowering Currant (Ribes)
• Foxglove (Digitalis purpurea)
• Redwood Sorrel (Oxalis oregana)
• Crocosmia
• Coral Bells (Heuchera)
• Western sword fern (Polystichum munitum)
• Tree fern (Cyathea cooperi)
• Giant chain fern (Woodwardia fimbriata)
• western bleeding heart (Dicentra formosa)
• manzanita (Arctostaphylos species)

For a full list of native plants that will grow under redwoods, check out this website:
http://www.laspilitas.com/nature-of-california/communities/redwood-forest/plants

About these ads

4 Responses to “Planting Under Redwoods”

  1. Deborah Gerson January 30, 2011 at 7:41 pm #

    No redwoods in my small city garden. Do the recommendations also work for a heavy shade area?

    • heiditarver January 30, 2011 at 8:03 pm #

      Hi Deborah. Yes and no. There are some trees, like valley oaks, that you really cannot plant under. Also some shade plants will do well under redwoods while others will do well under other types of trees, on the north side of structures, etc. So it depends on the specific conditions of your garden. If you give me more specifics I can make suggestions.
      Best,
      Heidi

  2. Marielle March 3, 2013 at 12:28 am #

    Our neighbors have redwoods along our fence, we would like to plant some other trees on our side, what trees can be next to redwoods and compete with the root system?

    • heiditarver March 3, 2013 at 2:21 am #

      Hi Marlelle. Planting other trees under Redwoods is not such a good idea, but you could try planting large shrubs such as Rhododendrons, or large ferns like Giant Chain Fern or Australian Tree Fern.

Leave a Reply

Fill in your details below or click an icon to log in:

WordPress.com Logo

You are commenting using your WordPress.com account. Log Out / Change )

Twitter picture

You are commenting using your Twitter account. Log Out / Change )

Facebook photo

You are commenting using your Facebook account. Log Out / Change )

Google+ photo

You are commenting using your Google+ account. Log Out / Change )

Connecting to %s

Follow

Get every new post delivered to your Inbox.

Join 216 other followers

%d bloggers like this: