Category Archives: Design trends

Plant Bulbs Now

This fall I?m at a new garden in Ben Lomond. I?ve brought down every potted plant from my property in Bonny Doon that was showing signs of regrowth after the fire. I figured if they were trying to survive after 6 weeks with no water, some in melted plastic pots and tops burned off who was I to deny them a chance to live? I had 250 potted plants. Yes, I know, what was I thinking? Anyway, with lots of empty glazed empty pots here I?m looking forward to planting bulbs this fall.

Daffodils and narcissus are are toxic.

There are a lot of squirrels here in this garden. I?ll have to outsmart them. Squirrels, mice and moles are observant and crafty. Once they discover newly planted bulbs, they’ll assume it’s food. Just disturbing the earth is a tip off for them. Daffodils and narcissus bulbs are toxic but if they dig them up then leave them exposed with just a nibble taken, so much for any spring flower display. Protect your bulbs with wire baskets or spray them with foul tasting repellent, letting the spray dry before planting. You can also bury the bulbs with ground up egg shells. Another way to foil squirrels is to plant the bulbs deeply, This only works if you have good drainage, however. Next year, if the squirrels start nibbling the foliage as it emerges try spraying it with hot pepper spray.

Forest Lily – long lived bulbs that bloom for a very long time.

One of the more unusual bulbs I grow in pots is Forest Lily (valthemia bracteata). I got several bulbs over 25 years ago and fortunately divided them last year to give as gifts. If the burned ones I now have don?t come back I can ask one of my friends to divide theirs and give me a few. The bulbs are enormous and bloom for months. The handsome foliage lis thick and wavy, looking somewhat like a succulent but it?s the huge, showy dark pink flower spikes that bloom from February to May that I love. Grow them light shade and allow them to go summer dormant. Valthemia are native to the northern Cape area in South Africa where it grows on rocky slopes along the famous Namaqualand Flower Route.

I love those huge, showy tulips as well as the new colors of daffodil and narcissus coming out each year. I?ve wanted to plant Spring Starflower or Ipheion for a long time. Their starry white flowers bloom over a long period in spring and they naturalize easily. Spring Snowflake ( leucojum vernum ) will also naturalize in the garden. The flowers are small and bell shaped, white with a green or yellow spot and have a slight fragrance. And I want to include some species tulips. They will re-bloom year after year just like they do in the wild in Europe, North Africa and Asia.

Another bulb I’ve wanted to grow for a long time is Ixia viridiflora. They need to be completely dry in summer so planting in pots will be perfect for this most striking and unusual bulb. Few plants can beat it for sheer brilliance of flower. Each flower is a brilliant turquoise green with a purple-black eye in the middle. The dark eye is caused by the deep blue sap of the cells of the upper epidermis. The green color is due to the effects of light being refracted from the cell wall and granules embedded in the pale blue cell sap. Amazing flower.

Tulips can be grown in sun or light shade.

What about bulbs in the shade? Bulbs that will bloom in light shade are crocus, scilla, tulips, grape hyacinth, leucojum, snowdrops, chionodoxa and lily of the valley. Many from the daffodil clan, including jonquils and narcissus will grow, bloom and naturalize year after year under tree canopies or other lightly shaded areas.

Whatever you bulbs you choose to try this fall, you will be happy you planted some bulbs come spring. And to help them bloom again the following year fertilize them at the time of planting with bulb food or bone meal worked into the soil a couple inches at the bottom of the hole. Mature bulbs respond to an early spring feeding with the same fertilizer.

Sweet Peas in the Garden

There is so much clean up to do around the garden in the fall but I think we should all do something fun. A couple years ago I got an email about when to plant sweet peas. This reader had collected seeds from the wild pea, lathyrus latifolia, and wanted to know when to plant them. Although the flowers of this perennial sweet pea are not fragrant, the culture is the same as all sweet peas. Now?s the time to plant.

Everlasting sweet peas are super easy to grow.

The perennial or everlasting sweet pea we see growing wild is not native to our area. It has naturalized throughout the United States and Canada after having been introduced from the Mediterranean area in the 1700?s. It can be invasive but if it?s growing in an out of-the-way spot where you can enjoy the bright pink blossoms they require little care.

Who doesn’t love old-fashioned sweet peas? A small bouquet will perfume an entire room with a delicious scent. They remind me of my Aunt Ruth who grew them every year and let me pick a bunch each spring whenever I went to visit. There are many new varieties and colors these days but back then her sweet pea vines were covered with the classic mixed colors of violet, blue, pink, peach and white.

Mixed bouquet of spring flowers including sweet peas.

Sweet peas have been around for a long time and many different countries claim that they originated there. One story is that a monk, Father Cupani, first harvested them in the wild on an island off Sicily in 1695 and sent the seeds to the Netherlands. In the 1800’s, a Scottish nurseryman named Harry Eckford began hybridizing and introducing larger varieties in a wider range of colors and they became quite a sensation. The most famous and perhaps the most important use of this flower was the extensive genetics studies performed by Gregor Mendel. Since peas self-pollinate, their characteristics such as height, color and petal form could easily be tracked. But whether they came from Ceylon, the modern day Sri Lanka, China or Sicily, heirloom sweet peas are as exquisite in the garden as they are in the vase.

Pant early blooming types of sweet peas in October or November. These varieties flower in the shorter days of late winter. Winter Elegance and Early Multiflora are common early flowering types. Also plant some of the fragrant spring flowering heirlooms and Spencer’s at the same time to extend your harvest time.

Highly fragrant Black Knight sweet peas make good cut flowers.

My very favorite sweet pea with long stems for cutting and an intense fragrance of orange blossoms and honey is called April in Paris. Large ruffled blossoms are a soft primrose cream, tinted at the edges in dark lilac that deepens and increases with age. But maybe it?s Black Knight that?s my favorite sweet pea with those dark maroon strongly scented blossoms. You can’t go wrong no matter what color or style sweet pea you choose. They attract bees, butterflies and hummingbirds. Deer generally ignore sweet peas. Sweet peas are not edible and may cause stomach upset.

Enjoy Fall in the Garden

Bearded iris can be divided when they become crowded and unproductive

Fall is a favorite season for many people. The heat of summer is just about over and our gardens can breathe a sigh of relief. Well, actually I?ve never heard any plants sigh but I know they can communicate with one another. For us up here in the Santa Cruz mountains, this is one of the best times to be outside. Here are tips for early fall in the garden.

Late fall is not a good time for major pruning so if you have some shrubs that need a tune-up do it soon. Wounds heal slowly later in the fall, leaving them more susceptible to disease. As a general rule, don’t prune when leaves are falling or forming. Wait to prune most trees until late in the dormant season or in late spring after leaves and needles form. To avoid sap flow on birches and maples, prune after leaves mature. Fruit tree summer pruning should have already been done when growth ceased.

Refresh perennials, such as butterfly bush, salvia and yarrow by cutting a third to half of their growth later in the fall.

Rake leaves- compost or put in your green can. If large leaves are left in place they will mat down and set up fungal problems come spring.

Remove dead and diseased leaves from under camellias, rhododendrons and roses.

Divide perennials like alstroemeria in the fall

Now through October, divide summer blooming perennials that are overgrown and not flowering well. Alstroemeria, agapanthus, coreopsis, iris, daylily, yarrow, rudbeckia, calla lily, aster and penstemon fall into this category. You can also divide spring blooming perennials like candytuft, columbine, astilbe, bergenia and bleeding heart although they don’t always bloom the first spring afterwards due to the energy they use re-establishing themselves. If you’re on a roll out in the garden, though, go for it now. You never know what other projects you may be working on next spring.

Start perennial flowers seeds now so that they will be mature enough to bloom next year.

Fertilize shrubs lightly one last time with an all-purpose organic fertilizer or layer of compost. Use compost only on California natives.

Plant cool season veggie starts like broccoli, cabbage, cauliflower, chard, lettuce, spinach, brussell sprouts, onions and leeks in soil enriched with 4-6 inches of compost as summer vegetable crops will have used up much of your soil’s nutrients.You can sow seeds of beets, carrots, radishes, spinach, arugula, mustard and peas directly in the ground. Planting early ensures your plants get a good start before cold weather sets in and growth mostly stops until spring. You?ll be able to start harvesting in just a couple months if you start now that the weather has started to cool.

If you aren’t going to grow vegetables in the garden this fall consider planting a cover crop like bell beans, fava beans and vetch after you’ve harvested your summer vegetables. Next month I’ll talk about how to go about doing this and how this benefits your soil.

Cut back berry vines that have produced fruit. Canes of the current season should be trained in their place.

Spider mites and thrips are especially prolific during early fall. If some of the leaves on your plants are pale with stippling, spray the undersides of infected leaves with organics like insecticidal soap switching off with neem oil as they build up a resistance to one of the pesticides. Plan to spray with a horticultural oil in the winter to kill overwintering eggs.