New Plants for the Garden

Every season new varieties of colorful flowering annuals and perennials are introduced by hybridizers. These new plants are field tested and bred for better performance, disease and insect resistance, flower size, color and heat tolerance.  Where does this happen?  What goes into that gorgeous vivid red geranium you see on the bench at the nursery?

Over 30 breeders of flower seeds and perennial starts each spring showcase their new varieties in trials held throughout the state.  Professional growers visit the trials to choose which new varieties they will grow this year and offer to local nurseries and garden centers.  Goldsmith Seeds in Gilroy is one of the locations that hosts the colorful spectacle.

Fragrant, wisteria-covered arbors shade paths that wind throughout the landscaped grounds . The grounds are open to the public to enjoy throughout the summer.  Also on site are the greenhouses where breeders work on creating new and better flower varieties.  It was interesting to see several acres planted with fava beans as a cover crop. Soon the fields of this flowering legume will be cut down and tilled into the soil to add nitrogen. Legumes attract soil dwelling bacteria that attach to the plant’s roots and pull atmospheric nitrogen out of the air and soil, storing it on the roots as nodules.  When the plant is cut down and chopped up to decompose that nitrogen remains in the soil to feed new plants. After a few weeks of decomposition the energized soil will be ready for planting test flowers that Goldsmith seeds will further evaluate.

All of the seeds are actually grown in greenhouses in Holland and Guatemala. Cool season flowers like primroses, cyclamen, violas and pansies are produced mainly in Holland while warm season flowers like dahlias, geraniums, gazanias, and verbenas are grown at different elevations in Guatemala. I learned Goldsmith Seeds has been developing and growing seed in Guatemala for 40 years.

What new cultivars really impressed me at the trials?  There’s a new geranium that combines the best features of ivy and zonal geraniums. I liked the amazing color of Calliope Dark Red but all the colors were show stoppers. They would be perfect for baskets or beds in full sun or part shade. And you should see all the colors that calibrachoa now comes in-light blue, dark blue, deep yellow, peach, orange, even white with rose veins. These have now been bred to bloom earlier in the season which is why you’re seeing them in nurseries now.  There were many fragrant flowers like . I always looks forward to them when they arrive at the nursery. 

Try something new in your garden this year. There are so many good choices.
 

Fragrant Plants for Spring

Spring is busting out all over.  Huge saucer magnolias and dainty flowering cherries adorn trees everywhere you look.  Many spring bloomers are deliciously fragrant, too. Whether you’re planting edibles in the vegetable garden or containers on the deck include plants that entice you to linger and enjoy their sweet scent.

Old fashion lilacs will be blooming soon. Nothing ways "Spring" like the legendary scent of these shrubs.  Give them a spot in full sun with enough room for them to spread 6′ wide. While most plants accept slightly acidic soils, lilacs are an exception.  Dig lime into your soil at planting and side dress yearly if your soil is acidic.

Looking for something in vanilla? Evergreen clematis vines make a great screen with 6" long, glossy leaves and creamy white, saucer shaped, vanilla-scented flower clusters.  Provide study support for them to climb on. They are slow to start but race once established.

Outside the veggie garden, citrus blossoms can scent the air.  Plant lemons oranges, mandarins, kumquats, grapefruit and limes in full sun areas.  Established trees need a good soak every other week so keep them on a separate watering system from your other edibles.

Inside the veggie garden, include scented plants that attract beneficial insects.  Fragrant lavender and sweet alyssum are good choices.  For sheer enjoyment, plant perennial carnation and dianthus for their intense clove fragrance.  Cinnamon Red Hots grow to 15", are deer resistant, bloom all spring and summer and don’t need deadheading.  Velvet and White border carnations are among the least demanding and most satisfying perennials in the garden. As cut flowers they are long lasting and highly fragrant in bouquets.

Another fragrant perennial to tuck among your other plants or veggies is Berries & Cream Sachet nemesia. Intensely fragrant blossoms are purple and white, just like blackberries covered with cream.  They bloom for months without any special care but if flowers decline, cut plants back to stimulate new growth.

Fragrant shrubs that are easy to grow are osmanthus, bush anemone, choisya, philadelphus, butterfly bush, and daphne.  Scented perennials include sweet violets and chocolate cosmos.  Plant several chocolate cosmos for the strongest effect. They really do smell like dark chocolate on a warm day.  Vivid purple heliotrope don’t winter over around here but their vanilla and licorice fragrance make them worth replanting each year.

Plant for fragrance. It’s your reward for all the care and tending you give your garden.
 

Plant Communities of the Santa Cruz Mtns

Knowing which type of plant community you live in can make the difference between success and ho-hum results in your garden. Choose the right plant for the right place. 

Plant communities have evolved over time with geologic changes in climate, topography and soils. We have several district areas here- mixed evergreen forest and redwood forest, chaparral and the sandhills.

If you live in a mixed evergreen forest you garden with trees like coast live oak, tan oak, madrone, bay and buckeye. Understory plants include ceanothus, coffeeberry, hazel and poison oak.  Your soil contains serpentine and granite. Many other unthirsty plants like salvias, lavender, santolina, society garlic, needle and giant feather grass and rockrose also do well here. Another plant to try that will also flourish in your garden is a native of New Zealand called Coprosma.  There are many colorful varieties now available like "Evening Glow".  All are valued for their colorful variegated foliage especially in the cooler months when the leaves turn orange red.  Many coprosmas grow to 4-5 ft but Evening Glow is just 14" tall. They need little water and can be happy in full sun or partial shade.

Mixed evergreen forest may also be found along canyon bottoms near streams where bigleaf maple, white alder, cottonwood, and western sycamore trees grow.  Most plant grow lush in this deep soil.  If you are looking to add something new to your garden here consider brunnera which blooms now with tiny clear blue flowers that freely self-sow without being invasive. It has large heart-shaped leaves that are showy, too,

Chaparral areas are the hottest, driest slopes of these mountains. Dense thickets of manzanita, coyote brush, chamise, coffeeberry, ceanothus, monkey flower and sage are native here. These plants are adapted to little water and often have tiny, thick, waxy,  light green or grayish leaves. Soils tend to be rocky, shallow and overlaying rock or a subsoil that is mostly clay. Plants here need to have an extensive root system that reaches widely and deeply for water. If you live here be sure you have the spring blooming western redbud and Julia Phelps or Dark Star ceanothus. The combination of magenta and electric blue flowers is unforgettable.

The sandhills near Quail Hollow and Bonny Doon around Martin Rd. are part of an ancient sandy sea floor that was uplifted, eroded and exposed. These sandy soils lack organic matter and nutrients and their white color magnifies the temperature of the summer sun. Unique, native plants include silverleaf manzanita and Ben Lomond wallflower live here.  When you plant in these soils amend with compost to provide needed nutrients. Lewisia, a pretty little plant native to northern California, thrives in sand and gravel soils with good drainage. This 8" tall hardy perennial blooms from spring to early summer with extremely showy flower clusters in colors ranging from apricot to pink, rose and bright cherry red.  Mulch these beauties with gravel or crushed stone.

Remember right plant-right place.

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