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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Current Staff's Favorite Plant

Current Staff's Favorite Plant

Our featured plant: Passiflora ‘Snow Queen’

Salutions to a new decade, Digging Dog's 2020 Offerings, Fresh Start Sale!

Vines are amazing...

in their ability to lend an air of maturity to the garden. They can be trained on a fence, trellis, pergola or obelisk, framing a distant vista or anchoring an intimate view. Be sure to check out our online selection of clematis and other climbers.

The 28th edition of our Digging Dog Nursery Catalog ...

will be mailed on January 2nd! Our new catalog features an exceptional collection of 90 new plants, accompanied by coveted older selections. We welcome you to wander through its pages, or browse our website which has been newly updated. Distinguished by multi-seasonal appeal, exquisite beauty, acquiescent habits or heroic temperaments, these versatile plants will flourish in a variety of environs throughout the country, and as an added bonus many of our species sustain birds and beneficial pollinators. We hope you’ll discover offerings that sprout inspiration, brighten your mood and cajole you into your leafy sanctuary. Following is a sampling of some of our favorites.

An upcoming gardening season evokes excitement and anticipation, accompanied by the prospect of possibility. Questions arise: How do I feel strolling through my botanical retreat? What would I like to change? When considering these queries, we’re always buoyed by what famed Mexican architect and engineer Luis Barragán once said, “A garden must combine the poetic and mysterious with serenity and joy.” Now that’s something to strive for!

Your ongoing commerce, steadfast support and helpful comments have enabled us to continue nurturing these wondrous plants we grow for you. We would like to extend our heartfelt gratitude to you, our valued customers.

All of us plant wranglers at the nursery, along with Boobah, our wee greeter and self-appointed nursery manager, and shy kitty, Parker, wish you countless happy hours digging in a garden of your own! 

Fresh Start Sale!

Purchase a minimum of $100.00 in plants, and receive a 15% discount! Mention code: "Fresh Start 2020" in the customer comments section of our online order form, and we will deduct the sale discount when we confirm your shipping date. All plants must be in stock, and ship by January 14, 2020 to qualify for the discount. Sale runs thru January 12th 2020.

Digging Dog Nursery Right Border