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UC Master Gardeners of Riverside County
March 2026
Events & Information eBlast
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Native and Honey Bee Care | |
Date: Saturday, March 7
Location: 4500 Glenwood Dr., Riverside CA. 92501
Time: 10:00am
| Coachella Valley Wildflower Festival | |
Coachella Valley Wildflower Festival has served as the leading public celebration of our desert environment—connecting thousands of families with the land, science, and stewardship that sustain our community.
Each March, the Festival draws families, nature lovers, educators, and visitors from across the Coachella Valley and beyond. While wildflower blooms vary year to year, interest in our desert ecosystem does not.
Date: Saturday, March 7
Location: 43900 San Pablo Ave. Palm Desert, CA. 92260
Time: 9:00am - 4:00pm
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Hop on Board for the Dinosaur Express at Southern California Railway Museum, featuring “Buddy” from the PBS SoCal KIDS Show “Dinosaur Train” — plus a brand-new Lego Masterbuild Competition!
Southern California Railway Museum is excited to announce the return of the Dinosaur Express, a unique, outdoor, interactive experience created in partnership with PBS. Buddy the Dinosaur will be at the Museum to meet his fans and highlight his favorite topics of Paleontology, Science, Technology, Engineering, Art, and Math. Lary, Pery, Spike and Wigwag, SCRM’s resident dinos, will also make appearances throughout the day. We’ve also wrangled our newest baby dinosaurs and are teaching them how to be train conductors – so don’t miss our newest additions on each train ride!
Date: March 7 & 8
Location: Southern California Railway Museum, 2201 S. A Street, Perris, CA. 92572
Time: 9:00am - 5:00pm
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Date: Thursday, March 12
Location: Lakeland Village Library, 16275 Grand Ave., Suite E Lake Elsinore, CA. 92530
Time: 10:30am - 11:30am
| Wildfire Education & Resource Fair | |
Date: Saturday, March 14
Location: Galway Downs - Temecula Wine Country, 38801 Los Corralitos Rd., Temecula, CA
Time: 10:00am - 2:30pm
| Desert Horticultural Society's 17th Annual Spring Garden Tour | |
Date: Saturday, March 14
Location: On the morning of the tour you will receive an email with the garden locations
Time: 10:00am - 2:00pm
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The Dirt on Soil:
Structure, Texture, Mulch & More
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Date: Saturday, March 14
Location: Arlanza Library, 8267 Philbin Ave
Time: 10:00am - 12:00pm
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Families and youth are invited to enjoy the annual Youth Fair! The day will be packed with community booths, performances, arts and crafts, games, and much more!
Date: Saturday, March 21
Location: Lazy Creek Recreation Center, 26480 Lazy Creek Rd., Menifee, CA. 92586
Time: 7:00am - 5:00pm
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Date: Saturday, March 21
Location: 11875 Indian Truck Trail, Temescal Valley, 92883
Time: 10:00am
| Help Us Prepare For The Citrus Festival | |
Date: March 25 - March 27
Location: California Citrus State Historic Park, 9400 Dufferin Ave., Riverside CA. 92503
Time: 7:00am - 5:00pm
| 4th Annual Citrus Festival | |
Date: Saturday, March 28
Location: California Citrus State Historic Park, 9400 Dufferin Ave., Riverside CA. 92503
Time: 10:00am - 12:00pm
| Permaculture Design Training and Certificate | |
March 13 - Design Lab (11:00am - 3:00pm)
March 14 - Class 6: Stewardship, Water, Barter & Trade, Soils Food Security
March 15 - Design Lab (11:00am - 2:00pm)
March 28 - Natural Building Workshop - Cob Walls & Bottle Art
Date: Saturday, March 13, 14, 15 & 28
Location: 4500 Glenwood Drive, Riverside CA. 92501
Time: 9am - 3:30pm
| Free Desert-Friendly Shade Trees | Riverside Flower Show and Garden Tours | |
JOIN US AT MARCH
CERTIFIED FARMERS MARKETS
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FARMERS MARKETS FEATURING
UC MASTER GARDENERS
These fun events combine shopping for fresh fruits and vegetables, gourmet foods, flowers, crafts, and many other interesting items with an "Ask the Master Gardener" information table. Master Gardeners are present to answer your gardening questions, hand out a wide range of materials on gardening topics, and present "how to do it" gardening demonstrations. This is where you can find us at farmers markets in March:
DOWNTOWN RIVERSIDE--Saturday, March 14, from 8:00am - 2:00pm at Main Street, between 5th and 6th
CORONA--Saturday, March 7, from 8:00am - 12:30pm at Corona Mall, 6th and Main St., Corona, CA, 92879
PALM SPRINGS--Saturday, March 7 & 21, from 8:00am - 12:30pm at 2300 E. Baristo Road
TEMECULA--Vail Ranch HQ--Tuesday, March 17, from 9:00am - 1:00pm, 32115 Temecula Parkway (Between Kohl's and Ross)
TEMECULA--Promenade Mall--Wednesdays, March 11 & 25, from 9:00am - 1:00pm, 40820 Winchester Road (Upper Level of Mall, in front of Dick's Sporting Goods)
MURRIETA--Sunday, March 8 & 22, from 9:00am - 1:00pm, Village Walk Plaza, 24480 Village Walk Place
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OTHER PUBLIC VENUES FEATURING
UC MASTER GARDENERS AT
INFORMATION TABLES
AKA "Ask the Master Gardener"
These are locations where UC Master Gardeners have been invited to hand out research-based information to the public and answer questions As you are out doing errands and having some relaxation, stop and get some gardening help as you enjoy these events!
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Stop by the Master Gardener Information Table at Tracker Supply:
Jurupa Valley, March 21, 8:00am - 2:00pm
Moreno Valley, March 21, 10:00am - 2:00pm
Temecula, March 21, 8:30am - 1:30pm
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Maintenance
- Prune grapes.
- Cleanup: remove mummy fruit and blighted limbs on stone fruit to reduce brown rot. Remove and destroy fallen leaves to reduce peach leaf curl.
- Mulch cane berries, cut out all old canes and reset new canes in twine.
- If weather permits, prepare beds for planting by spading in compost an soil amendments.
- Check irrigation system and perform maintenance as needed.
- Divide and replant herbs.
Fertilize
- Cane berries and strawberries.
- Deciduous fruit and young shade trees at first sign of leaves, young conifers, cool season grass and roses.
- Kiwis (give 2/3 of recommended annual PNK, 1/3 in May).
- Citrus are heavy nitrogen feeders. Mature trees need 1 ½ lbs. N per year. Divide this amount by 4 and apply each quarter one month apart for 4 months, beginning in March.
- Daphne and camellia with NPK bloom.
- All shrubs except newly planted. Wait until after bloom for azaleas and rhododendrons.
Plant
- Gardeners in Sunset climate zones 8–9 and 12–24 can all grow some kind of citrus, and March is the ideal time to plant.
- Ask your local nursery or county Master Gardeners for recommendations on the best varieties for your area.
- To ensure that you get a true dwarf tree ― which grows to half the size or less of standard citrus ― make sure your tree was grafted onto ‘Flying Dragon’ root stock (this is often specified on the plant label).
- Continue to plant bare-root nectarines, peaches, plums, and other stone fruit.
- Start an herb garden with chives, parsley, rosemary, sage, savory, tarragon, and thyme. Sow seeds of arugula, chervil, cilantro, and dill.
- Trees, shrubs, perennials
- Container roses, shrubs and trees.
- Grapes, cane berries, rhubarb.
- California native plants! Calscape.org lists plants that grown best in every ZIP Code
Flowers
- Below 2000 ft: Canterbury Bells, Forget-Me-Nots, Foxglove, Pansies, Primula and other available perennials.
- Above 2000 ft: you can still plant flowering Sweet Pea seeds – now!
Lawns
- If rains haven’t come, irrigate lawn once or twice this month.
- Seed and renovate lawns
Vegetables
- From seed : radish, lettuce, chard, snap beans.
- Greenhouse or Cold Frame: Hardy annuals from seed such as delphinium, nemesia, matthiola (stock). Below 2000 ft: eggplant, peppers, tomatoes, all melons and squash family. Above 2000 ft: lettuce, cabbage family.
Spray
- All fruit, nuts, roses with 50% wettable copper powder.
- Stone fruits: fixed copper when buds are swollen and starting to show first color to control brown rot, peach leaf curl, pseudomonas, blossom and canker infections. Also use Roural or Benlate if wet conditions prevail and if mummies have been a problem.
- Apples: for apple scab use Capton, Benlate, Rubigan or Rally when apple buds first show signs of green and repeat spray every 10 days until bloom where scab is a problem. In many cases this treatment may be combined with February insect controls. (note: Rubigan and Rally are expensive).
- Check roses for black spot, mildew and rust and spray if needed.
- Watch for early signs of powdery mildew on grapes, roses and ornamentals. Treat at 2-4” of growth if needed. Apply sulfur or potassium bicarbonate when temperature is below 90 degrees.
- Check roses for aphids; control with a strong spray of water or insecticidal soap.
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All fruit and nut trees: Check IPM for safe and effective sprays
- Note: All the effective insecticidal sprays kill bees and other beneficial insects. Do not spray while trees are in bloom.
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Have a Gardening Question?
Ask a UC Master Gardener!
Include as much detail as possible and any photos that illustrate your problem/question.
Email:
Riverside County: anrmgriverside@ucanr.edu
You may also call the "Ask Your Master Gardener" Helpline at 951-955-2647 with your questions.
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rivctyucmgp@gmail.com
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Copyright © 2026, UC Master Gardener Program of Riverside County, All rights reserved.
CONTACT US:
UC Master Gardener Program of Riverside County
2080 Washington Street
Riverside 92504
951-955-0170 (Main)
anrmgriverside@ucanr.edu
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