California Spring Trials 2023 Preview: A Taste of Yellow Varieties on Display
California Spring Trials (CAST) 2023 is right around the corner, taking place March 29-April 2 along the California coast. What can you expect to discover at CAST this year? Over the next three weeks, GreenhouseGrower.com offers a series of slideshows, video previews, and more.
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Helianthus 'Sunmazing Yellow' (Westhoff)
Helianthus ‘Sunmazing Yellow’ is a breakthrough in sunflower breeding. Not only are plants heavily branching, heat and drought tolerant, but they continuously rebloom all summer long. Large plants are ideal for a late spring/early summer patio planter, or even better, planted in the landscape where they are covered in blooms all season long.
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Salvia 'Lemon Pie' (Jaldety Nursery)
This Salvia hybrid is flowering with beautiful soft lemony, big flowers. Free flowering for a long flowering period, from early spring till the first frost. Uniform bushy habit with flexible stems. Easy to grow and care for, in big containers for patio and decks, mix well with other bold colors, use also in waterwise garden planting, cottage and meadow gardens and beds. The flowers attract bees, butterflies, and hummingbirds. USDA Zone: 7 to 9.
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Petunia 'Tumbelina Matilda' (Cohen Propagation Nurseries/Kerley)
New variety from the leading Double flowered series, bred by Kerley in the UK. Beautiful soft yellow with good compact trailing habits. Produced exclusively by Cohen.
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Petchoa 'Caliburst Yellow' (PanAmerican Seed)
A vibrant yellow petchoa from seed that provides an economical option for growers wanting the same easy production in large containers and the intensity of vegetative petunia colors. ‘Caliburst’ has a naturally compact/medium habit without the need for PGRs, and it makes a great mixed container component. Plant is day neutral with a nine-hour daylength response. It can be produced in early spring using cold growing conditions down to 50°F. Height: 6 to 10 inches. Spread: 20 to 28 inches. Exposure: Sun.
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Leucanthemum maximum 'Sweet Daisy Izabel' (Dümmen Orange)
White daisies are lovely, but ‘Sweet Daisy Izabel’s’ unique yellow flowers will shine like the sun in the early summer landscape. With a high heat and humidity tolerance, the breakthrough with ‘Sweet Daisy Izabel’ is its compact (14 to 16 inches) habit. Cooling and vernalization benefits its early flowering, improves flower count, and enhances color. Suggested for 1-gallon and 2-gallon containers. USDA Zone 4.
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Lantana 'Bandolero Lemon' (Syngenta Flowers)
This year, ‘Bandolero Lemon’ joins Syngenta Flowers’ extensive lantana portfolio. Its large clear yellow blooms combined with a vigorous upright habit result in a show-stopping performance.
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Heliopsis 'Sole Giatto' (Kientzler)
Long lasting perennial with energetic yellow blooms on a compact habit. Flowers from June to October. Specifically breed for improved retail shelf appeal. Maintains a strong hardiness to Zone 3.
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Helianthus 'Smiley Gold' (American Takii)
Helianthus ‘Smiley Gold’ is a pollenless, pot-type sunflower with a branching habit that produces multiple blooms. Height is between 6 and 20 inches depending on pot size. Blooms in about 55 to 60 days regardless of the time of year when grown in temperatures above 60°F.
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Gerbera 'Garvinea Sweet Joy' (HilverdaFlorist)
Garvinea is the only true Garden Gerbera. With great weather tolerance, Garvinea provides lots of happy colors from early spring until the first frost. Gerbera ‘Garvinea Sweet Joy’ is a new variety in this series. With its bright yellow flowers, ‘Sweet Joy’ definitely brings joy to any garden and delivers great performance.
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Gazania 'Sunme Yellow' (Jaldety Nursery)
Blooms repeatedly all year in warm climates, from early spring to autumn in colder climates with bright yellow with darker yellow marked center. Drought, heat, and wind tolerant, attracts bees and butterflies, easy to grow. Low growing perennial, mounding, compact, dense clumps. Perfect for mass planting, water wise garden planting, bedding, edging, front of a border, rock gardens, seaside gardens, containers for patio and decks. Mixes well with Gazania ‘Sunme Orange’.
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Echinacea 'MOOODZ Jealousy' (HilverdaFlorist)
Another new variety to the Echinacea MOOODZ Series is the unique green colored Jealousy. This variety blooms fast and is a full, strongly branched plant. Just like Echinacea ‘MOOODZ Imagination’, Jealousy is rich-flowering and a great addition for any garden and/or patio.
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Echinacea 'Guatemala Gold' (Danziger)
Danziger is adding a new echinacea series to its 2024 collection. ‘Guatemala Gold’ features golden sunset-hued petals that surround beautiful tall cones. ‘Guatemala Gold’ flowers in weeks 22 to 24, then provides long-lasting bloom power for the home gardener. It is the second unrooted cutting echinacea to hit the market (Danziger’s ‘Panama Red’ was the first.) ‘Guatemala’ is a first-year flowering perennial with no vernalization or bulking required.
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Celosia plumosa 'Arrabona Yellow' (Hem Genetics)
Celosia plumosa Arrabona Series has added three new colors to the former stand-alone ‘Arrabona Red’. For 2023, Hem Genetics adds Bronze-Leaf Red, plus Orange and Yellow, both with green foliage. Uniform among the colors, in cooler, drier climates they get to 14 to 16 inches tall, and in warm, humid climates they achieve a height of 18 to 20 inches. Ideal dramatic landscape item that hold up to heat and humidity very well.
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Argyranthemum 'Grandaisy Yellow' (Cohen Propagation Nurseries/Suntory Flowers)
New variety bred by Suntory Flowers in Japan. True yellow color, which is the most important color in Argyranthemum. It has large single flowers with vigorous growth habits and green foliage. Suits large pots and containers. Produced by Cohen from clean stock.
View all
Helianthus 'Sunmazing Yellow' (Westhoff)
Salvia 'Lemon Pie' (Jaldety Nursery)
Petunia 'Tumbelina Matilda' (Cohen Propagation Nurseries/Kerley)
Petchoa 'Caliburst Yellow' (PanAmerican Seed)
Leucanthemum maximum 'Sweet Daisy Izabel' (Dümmen Orange)
Lantana 'Bandolero Lemon' (Syngenta Flowers)
Heliopsis 'Sole Giatto' (Kientzler)
Helianthus 'Smiley Gold' (American Takii)
Gerbera 'Garvinea Sweet Joy' (HilverdaFlorist)
Gazania 'Sunme Yellow' (Jaldety Nursery)
Echinacea 'MOOODZ Jealousy' (HilverdaFlorist)
Echinacea 'Guatemala Gold' (Danziger)
Celosia plumosa 'Arrabona Yellow' (Hem Genetics)
Argyranthemum 'Grandaisy Yellow' (Cohen Propagation Nurseries/Suntory Flowers)
In the slideshow above, learn how new yellow and light-green varieties can help complement baskets and combos, or stand out on their own.
You can find the complete CAST lineup and schedule here.
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Brian Sparks is senior editor of Greenhouse Grower and editor of Greenhouse Grower Technology. See all author stories here.