Hardiness & Climate

Average Annual Minimum Temperature Range per Zone
ZoneTemperature Range
Zone 2-50° to -40°
Zone 3-40° to -30°
Zone 4-30° to -20°
Zone 5-20° to -10°
Zone 6-10° to 0°
Zone 70° to 10°
Zone 810° to 20°
Zone 920° to 30°
USDA Hardiness Zone Map

Digging Dog Nursery is 3 miles from the ocean, on a ridge top, bordering both Zones 15 and 17 (according to Sunset's Western Garden Book) or Zones 8 and 9 (according to the USDA Plant Hardiness Zone Map).

We have a relatively mild climate, with the coldest temperatures generally in the low 20's and the warmer days reaching close to 80°. Occasionally we do have cold winters when temperatures dip into the low teens.

USDA hardiness zones are indicated for each plant to suggest minimum tolerable cold. Use these only as a loose guideline, keeping in mind the varied factors which can cause a plant to be vulnerable to cold. Remember, micro climates can be created in your garden, making it easier to raise supposedly tender plants in colder zones. In some areas, a cold pocket may force the temperature lower thereby creating problems for a hardy plant.

Digging Dog Plant Nursery Greenhouse

Height & Width Estimates

The first number given represents ultimate height of the plant, including flower height above foliage. The second number is the width. Use these sizes as a reference for your garden planning and designing.

The figures are approximate and may vary according to soil fertility, exposure to sun, and other environmental conditions. The sizes we list have been observed here in our home garden, and in other Northern California sites, both coastal and inland.

Most grasses and perennials will achieve estimated proportions in 2 growing seasons, shrubs in 3-5 years. In the tree section, the growth rate, size attained in 10 years, and/or the tree's ultimate height has been listed.

Bloom Times

The months stated represent the approximate flowering times for each plant. These may vary depending on your specific environmental conditions.

Plant Containers

We ship well-established plants which are grown in the following container sizes:

Small Band:
2-½" square x 5" deep
Medium Band:
3" square x 5-½" deep (the majority of our perennials & grasses)
Squat Band:
3-¾" square x 4-½" deep
Large Band:
4" square x 6" deep (most of our trees & many of our shrubs)
Quart:
5" square x 6" deep.

Occasionally, plants will be available in liners (2-¼ square x 3-¼ deep) or landscape plugs, and will be discounted $1.00-$1.50 off the regular price.

Digging Dog plants are removed from their containers, and their firm, intact rootballs are placed inside plastic bags prior to shipping.

When Your Order Arrives

If you're not ready to plant when the order arrives, open the box immediately and remove the plants. Place them in a shady spot, making sure they don't dry out. Newly planted selections should be protected from hot sun and drying winds, and watered adequately.

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  • Perennials at Digging Dog Nursery
    • Perennials: Acaena to Anthemis
    • Perennials: Anthriscus to Astrantia
    • Perennials: Baptisia to Cynoglossum
    • Perennials
    • Perennials: Fallopia to Gunnera
    • Perennials: Haloragis to Inula
    • Perennials: Kirengeshoma to Morina
    • Perennials: Nepeta to Pulmonaria
    • Perennials: Rheum to Succisella
    • Perennials: Teucrium to Yucca
  • Ornamental Grasses at Digging Dog Nursery
    • Grasses: Acorus to Deschampsia
    • Grasses: Elymus to Uncinia
  • Shrubs at Digging Dog Nursery
    • Shrubs: Arctostaphylos to Halimiocistus
    • Shrubs: Hebe to Weigela
  • Trees & Vines
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Latest News

SALE!

Go-Green Holiday Sale 2021!

through December 19, 2021!

Enjoy a special savings when you order a minimum of $100…MORE

Holiday Schedule

Digging Dog goes on Holiday!

November 25 thru November 27, 2021 and

December 25 thru January 1, 2022

We will be closed to give our plant and paper wranglers some time to rest and enjoy a bit of holiday cheer…MORE

2021 Digging Dog T-Shirts have arrived!

"The Promise of a Garden"

in Heather Cardinal, Heather Deep Teal , Heather Black & Charcoal

Sizes: M thru XL!

$25…MORE

We are shipping throughout the fall, weather permitting!

We carefully monitor for inclement weather…MORE

Open for curb-side pick up!

Wednesday thru Monday

10 a…MORE

Helpful Tips

There are a few things we wanted you to know to help us help you receive your plants in a timely fashion

Please take a look at the following info:

• Is your email address correct? To receive our emails in your inbox, please add business@diggingdog…MORE

F.A.Q.'s

Are you thinking about contacting us? Please view some F…MORE



Current Staff's Favorite Plant

Current Staff's Favorite Plant

Our featured plant: Viburnum plicatum var. tomentosum ‘Shasta’

Vivacious Viburnums, Revel in Late Season Repose, Go-Green 2021 Holiday Sale!

Vivacious Viburnums……

Endemic to both Asia and North America, this vast group of graceful cold-hardy shrubs includes more than 150 species and numerous cultivars that are moderate to fast-growing. Our reliable Viburnum offerings sprout dashing deciduous or evergreen foliage with an array of leaf shapes and textures. Their gorgeous flowers unfurl in either a lace-cap style or dome shape, with  species such as V. carlesii and V. x burkwoodii wafting a delectable scent. Many don lustrous bird-friendly fruit, ranging from red to dark purple to black, while others blaze with autumn color. Preferring sun or part shade, these undemanding shrubs can be ensconced in large containers and shrubby borders, or featured as a stellar specimen, clipped into an  informal dense hedge or planted in a drift.

Revel in Late Season Repose……

As November draws to a close, a quieter mood prevails in our gardens. Many perennials are either dormant or getting ready for their winter’s rest. Though, some of the more stalwart ones, especially those that are located in protected spots still present a foliar aspect plus a handful of blooms. The blades and dried buff or silver-laced inflorescences of quite a few ornamental grasses thankfully remain standing, providing movement and delightful rustling sounds. Many deciduous and evergreen shrubs and trees continue to hold our interest either with fall color, artful bark and branching patterns or year-round foliage. The plants that we chose for this newsletter captured my attention, as I was strolling with my trusty canine cohort, Boobah this past week.

All of us plant wranglers at Digging Dog hope you have a wonderful holiday with family and friends, and perhaps find some time to enjoy your garden.

Digging Dog Nursery Right Border