Autumn Daffodil
Sternbergia lutea
- Plant Form: Perennial bulb
- Water Use: Low
- Mature Size: 0.25 – 0.5 ft. tall and wide
- Exposure: Full sun
- Bloom Time: Fall (Sept – Oct)
- Native to: Southern Europe, Asia
- Hardiness: Cold hardy to 28°F

This cheery surprise arrives to brighten your garden in the fall, seeming to appear out of nowhere. Autumn Daffodil bulbs sleep underground all summer, then burst up with bunches of yellow, waxy flowers in September and October, closely followed by clusters of strap-shaped leaves all winter. This plant’s charm and easy maintenance has garnered it awards — once you plant your own, you’ll know why.
Autumn Daffodil pops up through bare ground when you least expect it, just as autumn arrives. Its crocus-like, goblet-shaped, waxy yellow flowers each appear singly on 5 to 6-inch-tall stems. Soon after, deep green, strap-shaped leaves emerge that persist through winter, feeding the bulbs so they survive through their summer dormancy. Eventually these leaves disappear in spring until the next fall bloom. This heirloom bulb is so ridiculously easy to grow, and looks so charming, it has earned the prestigious “Award of Garden Merit” from the Royal Horticultural Society for its outstanding qualities. Happily, rabbits and deer rarely bother this plant. Plant bulbs 5-6 inches deep and 4-6 inches apart in late summer. Accepts most soil types, but they must be well-drained. Prefers full sun, and hot and dry summer months, so don’t give it too much summer water. Brightens up border fronts, rock gardens, cottage gardens, Mediterranean gardens, foundations, containers (with evergreen companion plants), pathways, and sidewalks.
Check out our “Garden Tasks” for September
Who would guess that anyone could say, with any credible authority, “Mushrooms can help save the world?” And even more preposterous, that in the desert, fungal threads that connect to plant roots combat global warming? Even though these statements sound like science fiction, we are finding that both are proving to be absolutely true.
These concepts were at the forefront of the vision to create an artistic, visually compelling book that would transport readers along a graphic “tour” of the unseen desert beneath the soil surface. Robin’s new book, “The Desert Underground,” will lead you on a virtual tour of the hidden but magnificent world of microorganisms intertwined with roots that silently works under our feet every day.
“The Desert Underground” book reveals the amazing partnerships that connect every native plant underground across the landscape. Journey through the interlocking biological and geological systems that work together to create a surprising carbon sponge, helping to combat climate change wherever desert soils remain intact.


Robin’s newest book was released at a special exhibit featuring “The Desert Underground” at the Joshua Tree National Park Art Expo at the 29 Palms Inn in September 2019. A series of large graphic displays, created with the original artwork presented in Robin’s book, led viewers along an illustrated tour through our desert soils, delving deeper and deeper into the underground. The exhibit was created by Robin Kobaly and was presented by The SummerTree Institute, an environmental education nonprofit, of which Robin is Executive Director.

Joshua Tree National Park Art Expo in fall 2019.
For more information about
“The Desert Underground” book,
or to order your own copy,
visit www.summertree.org/the-desert-underground/.
For an overview of the hidden but magnificent realm that works silently underground every day, read the feature article, “The Desert Under Our Feet” written by Robin Kobaly in the March 2019 issue of The Desert Report.
Check out our other events and workshops!
September Garden Tasks

Planting new native and drought-tolerant plants in the fall, when air temperatures are cooling but while soils are still warm, gives their roots a good growth spurt before their first summer, saving water and adding to vigor during their 2-3 year establishment period.
Late September to
mid-November
starts the most important
planting season
of the year
in the Southwestern U.S.
~ Plant native and drought-tolerant plants from late-September to mid-November; warm soil helps new plants develop deep roots before summer, reducing water needs during their entire two- to three-year establishment. We traditionally recommended planting native and drought-tolerant plants from mid-September through October, but as high summer temperatures are now lasting longer into our “fall” months, we are now adjusting the ideal planting time for the southwest deserts later into what is considered “fall”. If we experience drying Santa Ana winds in September or October, it is best to delay planting until the “Santa Anas” subside (safely by early November), so new plantings do not have to endure those hot, drying winds when first planted.
~ Fall opportunity to transplant Joshua trees and yuccas from late September to October.
~ Reduce water to cactus and succulents to prepare them for winter rest and protect against frost damage.
~ Keep adding to mulches as they decompose to conserve water, keep soil and roots cool, and reduce the frequency of watering.
~ Walk irrigation lines to check for clogs, leaks, and breaks.
~ Continue deep-watering trees & shrubs once a month. If you water by hand, leave a dripping hose at the drip-line of trees and shrubs (at the outer edge of branches) to deeply soak soil once a month; set a timer to remind you to move hose to next plant.
~ Protect against wildfire as Santa Ana winds start; prune dead limbs, clean away brush, and clean leaves from gutters.
Check out our featured “Plant of The Month” for September
Enter the fascinating world of southwest desert plants
Through our series of workshops and classes, we invite you to enter into the captivating world of plants and their impressive uses. Experience the plants growing in your area’s natural community as you never have before…through taste, smell, touch, and stories.
Let us lead you through native gardens to witness the variety and beauty of native plants available to gardeners throughout the southwestern United States. Join us in exploring the ancient and modern uses of our native plants for medicine, tools, shelter, clothing, and food. Enjoy learning how to incorporate drought-tolerant native plants into your garden design for benefits you might not have imagined. Discover the fun of using native southwest desert plants for food, herbal remedies, landscape, and even art.
In our workshops and classes, you will learn which of California’s 4,800 native plants are perfectly suited for your particular yard, and which ones best serve as evergreen hedges, privacy screens, shade-giving trees, long-lived ground covers, erosion control, seasonal color, interesting vines, and striking specimen plants. Find out how to select, plant, irrigate, and care for a remarkable variety of attractive, drought-tolerant native plants. Read More

Water-Wise Landscaping DVD
Available Now!
This engaging DVD, produced by The SummerTree Institute and featuring professional botanist Robin Kobaly, contains all the essential information you need to transform your High-Desert property into an enchanting, Water-Wise Landscape. You choose your path of discovery by selecting the topics within yard themes. This comprehensive DVD, with nearly four hours of hard-to-find expert information, covers the resources you will need to plan, design, plant, irrigate and maintain an attractive, drought-tolerant landscape.
To help you choose the right plants, you will find descriptions and growing tips for over 80 plants suited to high-desert gardens, all grouped by water-use themes.
Discover how you can create beautiful drought-tolerant landscaping in the high deserts of the Southwest with valuable tips and insider’s information. Robin leads you on this journey with fun demonstrations and real-life examples of yard solutions.
Here’s a sample:
Water-Wise Landscaping DVD
Special Features:
- Yard Design
- Understanding Soil and Mulch
- Planting Tips
- Irrigation
- Maintaining a Healthy Landscape
- Profiles of 84 Star-Performing Plants
- Price: $20.00, plus $2.50 shipping – All proceeds go to The SummerTree Institute to help support outreach efforts and educational materials for the non-profit’s “Water-Wise Landscaping” programs. Visit www.summertree.org for more program details.
Other Ways To Order:
To place an order with your credit card by phone, please call 760-363-1166.
Download the Water-Wise Landscaping DVD order form to mail a check or credit card information.
“All I can say is Wow! The presentation – Robin, the DVD –was simply superb…”
—Michael Stevens, Community Liaison Officer, Mojave Water Agency
“This DVD is absolutely a phenomenally crucial tool in educating the public…I’m so excited about this wonderful educational tool!”
—Marie Sovitsky, Publications Coordinator, Mojave Desert Resource Conservation District