In the event you haven’t already, now could be the time to dig out your backyard forks, shovels and luggage of soil amendments to get your backyard prepared for spring.

SoCal’s latest spate of cool temperatures has saved nurseries from setting out too many hot-season seedlings, however that can change because the temperatures rise. Tomatomania is already in full swing this month, so begin considering now concerning the veggies you need to add to your backyard.

Within the meantime, refresh the depleted soil from final 12 months’s crop by including some good, ideally natural amendments to your backyard beds or pots, equivalent to compost, worm castings and steer manure; water it nicely; and let it sit for a minimum of every week to present the soil time to chill down. The warmth generated by helpful microbes chomping down on all these yummy (to them) amendments can burn tender seedlings, so ensure the soil has an opportunity to chill down earlier than you begin planting.

One final be aware: The Santa Monica Mountains Fund is internet hosting its second digital Southern California Monarch and Milkweed Convention on Saturday, March 12, from 9 a.m. to 2 p.m. This deep on-line dive into “all issues monarch and milkweed” is free, however registration is required on-line.

E mail garden- and plant-related occasions to jeanette.marantos@latimes.com a minimum of three weeks earlier than they occur, and we would embrace them within the calendar.

By means of Might 31
The primary Butterfly Backyard Contest for gardens in southwest Riverside County, sponsored by the Santa Margarita Group of the San Gorgonio Chapter of the Sierra Membership. Gardens ought to embrace California native nectar crops for grownup butterflies and host crops for the caterpillars (based mostly on data on the California Native Plant Society’s Calscape database below the “butterflies” tab). Gardens have to be within the communities of Canyon Lake, Hemet, Lake Elsinore, Menifee, Murrieta, Perris, Temecula, Wildomar or Winchester and might be evaluated in 4 classes, starting from additional small (25 sq. ft or much less, together with container gardens) to gardens bigger than 125 sq. ft. Gardens might be judged on their general magnificence and performance for all native butterflies; to be eligible, they have to be primarily composed of native crops. It’s free to enter. Winners might be introduced June 10, with prizes starting from $50 to $125, relying on backyard dimension. Go to the web site for entry types and data. sierraclub.org/san-gorgonio/santa-margarita

March 11-12
Tomatomania! at Otto & Sons Nursery, 1835 E. Guiberson Street in Fillmore, from 8 a.m. to 4 p.m. every day. SoCal’s famend rose nursery makes room for Tomatomania’s greater than 200 heirloom and hybrid tomato crops and a few 100 kinds of peppers. ottoandsonsnursery.com

March 11-13
Tomatomania! at Fig Earth Provide, 3577 N. Figueroa St. in Mount Washington, from 9 a.m. to five p.m. every day. figearthsupply.com

March 12
Spring Bloom Excursions at Descanso Gardens, 1418 Descanso Drive in La Cañada Flintridge, at 11 a.m. and 1 p.m. Take a guided strolling tour to see what’s blooming. Reservations aren’t needed; simply meet on the Heart Circle. Free with $15 admission to the gardens ($11 seniors 65 and older and college students with ID, $5 ages 5-12. Members and youngsters below 5 enter free). descansogardens.org

March 12-13
nineteenth Clivia Present & Sale introduced by the Southern California Chapter of the North American Clivia Society, on the Huntington Library, Artwork Museum and Botanical Gardens, 1151 Oxford Street in San Marino, from 10 a.m. to five p.m. each days. Society members can have greater than 200 crops on show together with uncommon kinds of clivias out there for buy. Guests may also solid their votes for the present’s “Folks’s Selection” award. The present is free with $29 admission to the Huntington ($24 for seniors 65 and older, energetic navy and college students with ID, $13 for ages 4-11. Members and youngsters below 4 enter free). huntington.org

March 13
South Coast Cactus & Succulent Society presents a free, in-person speak by succulent professional Woody Minnich concerning the cactuses and succulents of New Mexico from 1 to three p.m. within the Peninsula Heart Library Group Room, 701 Silver Spur Street in Rolling Hills Estates. Minnich grew up within the Mojave Desert and now lives in New Mexico. That is the society’s first in-person occasion for the reason that COVID-19 shutdowns in March 2020; please verify the web site for any last-minute adjustments. southcoastcss.org

March 18-20
San Diego County Orchid Society Orchid Magic Worldwide Spring Present and Sale on the Scottish Ceremony Heart, 1895 Camino Del Rio South in San Diego, from 3 to 7 p.m. on March 18, 9 a.m. to six p.m. on March 19 and 10 a.m. to 4 p.m. on March 20. The present will embrace 4 orchid lessons on March 19 and 4 on March 20 on subjects equivalent to caring for a brand new orchid buy, reblooming an orchid, repotting an orchid and orchids to develop open air. The society can even have free printed supplies about orchids out there to take house, together with care sheets for every of a dozen several types of orchids. Admission is $10 for in the future or $12 for the weekend. Kids below 12 enter free of charge. sdorchids.com

Tomatomania! at Tapia Bros. Farm, 5251 Hayvenhurst Ave. in Encino, from 9 a.m. to five p.m. every day. fb.com/tapiabrosfarm/

March 19
Golden Backyard’s Lengthy Seashore Plant Swap on the Hangout, 2122 E. 4th St. in Lengthy Seashore from 4 to six:30 p.m. This free occasion will characteristic Danae Horst of Folia Collective signing copies of her ebook, “Houseplants for All.” In the event you plan to deliver wholesome, pest-free crops or cuttings to share or swap, RSVP on-line to make sure an area is offered for you. goldengarden.co

March 19, 26 and April 2
Three-part native bee workshop led by neighborhood scientist and photographer Krystle Hickman on the Theodore Payne Basis nursery, 10459 Tuxford St. in Solar Valley, on March 19 and 26 and a personal backyard in Altadena on April 2, from 1 to three p.m. every day. Hickman will talk about how you can determine and {photograph} native bees, their relationships to native crops and how you can backyard for native bees. Workshops might be held each indoors and open air and are restricted to fifteen individuals. Contributors ought to put together for strolling on steep, uneven surfaces and costume in layers, because the classroom home windows might be open for air flow. Contributors should present proof they’re totally vaccinated or present a unfavourable COVID-19 PCR take a look at end result and put on a masks whereas indoors. Register on-line, $150 ($130 for Theodore Payne Basis members). eventbrite.com

March 25-27
Tomatomania! at Underwood Household Farms, Moorpark Farm Heart, 3370 Sundown Valley Street in Moorpark, from 9 a.m. to five p.m. every day. tomatomania.com

March 26
Spring Celebration at Descanso Gardens contains excursions of the pollinator backyard and the brand new nursery, in addition to the native milkweed and different crops the gardens are rising to assist pollinators, from 10 a.m. to three p.m. at 1418 Descanso Drive in La Cañada Flintridge. Excursions are scheduled in English at 10 a.m. and a pair of p.m., and a tour in Spanish is scheduled for 1 p.m. The occasion additionally contains informational tables staffed by the backyard’s companion organizations — Pure Historical past Museum of Los Angeles County, Latino Outdoor, Arroyos and Foothill Conservancy, California Native Plant Society, Theodore Payne Basis and Kidspace Kids’s Museum — from 10 a.m. to 2 p.m. All actions are free with $15 admission ($11 for seniors 65 and older and college students with ID, $5 for ages 5-12. Members and youngsters below 5 enter free). descansogardens.org

April 1
Tomatomania! at Wachter’s Hay & Grain, 114 S. Montgomery St. in Ojai, from 9 a.m. to five:30 p.m. fb.com/wachtershayandgrain

April 2
Tomatomania! at Seaside Gardens, 3700 Through Actual in Carpinteria, from 9 a.m. to five p.m. seaside-gardens.com