Sanhedrin Nursery – Garden Blog

• The “Wave” petunias make wonderful hanging baskets for full sun. They come in purple, bright pink, reddish-purple and pale “misty lilac.” They can also be used for a colorful summer ground cover.

• Asparagus plants should be fed with good, rich compost when you have finished cutting spears. Keep the bed mulched and weed-free all summer, and the soil moist.

• Colorful Gerberas with their large, daisy flowers are a standout in containers. Water them infrequently and give them plenty of sun for flowers all summer.

• Earwigs are out and about and hungry. Control them with the new “Sluggo Plus”, or diatomaceous earth sprinkled around the plants, or go out after dark with a flashlight and a spray bottle of Safer’s Insecticidal Soap. One squirt will put an end to the spoiler.

• Tomatoes are the most popular summer vegetable. Choose from the many varieties, both Heirlooms and hybrids, available now, so you can enjoy delicious home-grown flavor.

Enjoying the Color and Fragrance of Roses

Roses have long been revered for both their stunning colors and their memorable fragrances. It is usually the color of a rose that first catches one’s attention but as soon as you get close to one, you want to smell it.

The palette of roses now includes an amazing array of colors. Flowers may be solid-colored, striped, bi-colored (different colors on the insides and the outsides of the petals), or blends (two or more colors intermingled on each petal).

To create a warm color scheme, choose a combination of red, orange, gold and yellow roses. These will draw the eye into the garden and make it look smaller than it is. A cooler color scheme, composed of violet, mauve, purple, pink and white, is soothing and refreshing. It is the best choice for a quiet garden meant for relaxing. It also makes a small garden look larger.

When it comes to fragrance, there are many fragrant modern roses as well as old garden roses. Color and fragrance are related and have to do with a rose’s heritage. The classic “rose” fragrance comes from the damask rose and is found mainly in the red and pink roses. It is a heavy fragrance that needs heat before the rich odor is released. White and yellow roses have a lighter fragrance that is best sniffed on a warm summer morning.

Many red roses have a strong fragrance. ‘Mister Lincoln’ has long been the yardstick that all new introductions are measured against. Its richly perfumed deep crimson blooms make it one of the all-time favorite roses. The lovely dusky red rose named ‘Lasting Love’® has a rich pure rose fragrance. It has shown itself to be a strong, healthy rose in our climate.

‘Perfume Delight’ has rich pink flowers with a strong rose fragrance and the super-sweet fragrance of the classic ‘Tiffany’ rose has made it an award winner. The pink petals suffused with yellow on long stems are excellent for cutting.

The large flowers of the new rose ‘Crescendo’™ are white, blushing to light pink at the edges with a strong honeysuckle and rose fragrance. It is sure to please.

Purple roses tend to be very fragrant. The dark velvety purple flowers of ‘Midnight Blue’™ have an old fashioned form and a strong, spicy clove fragrance.

‘Gold Medal’ has it all. The deep golden yellow flowers rich with fruity fragrance are borne on long stems with disease-resistant foliage. And ‘Strike It Rich®’ is a soft gold rose with a spicy perfume. The long elegant buds of gold are polished with rosy pink. It is an excellent rose in the garden or on the table.

The new, bright coral rose ‘Sedona’ ™ brings the bright colors of the desert into our gardens. Its unique, fruity, pear scent is strong and exciting.

Remember that one fragrant rose in a mixed bouquet will perfume the room and give you the colors you want at the same time.

For a climbing rose, ‘Autumn Sunset’® with its apricot gold clusters of shapely flowers has a rich, fruity fragrance that is hard to beat. It is also very resistant to blackspot, and blooms well the first season.

Few flowers bloom for as long and abundantly in this climate as do roses. Choose beauty and fragrance to decorate your garden and home.

• Mother’s Day is the perfect time to give a gift of a living plant. Gardenias, hydrangeas, hanging fuchsias and ivy geraniums are sure to please her.

• Gladiolus make wonderful cut flowers throughout the summer. Plant some every two weeks for continuous blooms.

• Hang codling moth traps in apple trees to reduce the number of wormy apples in your harvest this year. Be sure to use a fresh pheromone (attractant).

• Feed roses to encourage a beautiful display of color later this month. Treat plants to prevent insect and disease problems.

• Plant an herb garden in a container near the kitchen door for convenient fresh spices like basil, oregano, parsley and thyme.

More Waterwise Landscaping

Water efficient landscaping includes grouping plants together with similar water requirements, watering just to meet the plant needs and using decks and patios to enhance your enjoyment of the yard.

Water zone 2 is made up of plants that can survive on watering twice a month. Of course, they need to get established before they can handle such infrequent watering.

Large shrubs that will grow here include the common lilac, Syringa vulgaris. Hybrids come in many different colors and shrubs generally grow to be about 12 feet tall. Their fragrant spring flowers are a delight. The spring-blooming Forsythia, with its bright yellow flowers, is a very durable shrub that announces “It’s Spring” each February when it blooms.

Medium-sized shrubs include Japanese Barberry, Berberis thunbergii ‘Atropurpurea,’ which is a thorny, purple-leaved shrub that grows 4-6 feet tall and makes an excellent hedge. Flowering Quince, Chaenomeles japonica, is well-known for its red flowers that are among the first to bloom in the spring. It is also thorny and a very dependable shrub.

Low-growing shrubs to use here are the attractive native groundcover, Arctostaphylos uva-ursi. This is a low-growing type of manzanita that spreads quickly and always looks good. Bearberry Cotoneaster, Cotoneaster dammeri and Cotoneaster horizontalis, are evergreen groundcovers that grow only 1 foot tall and spread 8-10 feet wide. They are good-looking year-round and have red berries in the fall and winter.

Another good groundcover is Snow in Summer, Cerastium tomentosum, a grey-leafed plant that grows about 6-8 inches tall. The showy white flowers that appear in spring and summer give it its name.

For more flowers, plant Blanket Flower, Gaillardia x grandiflora ‘Arizona Sun,’ which is a showy perennial with large, red and yellow daisy flowers that blooms much of the summer. Daylilies, Hemerocallis varieties, have attractive trumpet-flowers that come in many colors. They make a large clump and are always attractive.

Many varieties of Penstemon can live on occasional watering. There are showy varieties like purple Midnight and red Firebird, but the native Penstemon heterophyllus has lovely sky-blue flowers that light up the garden.

Germander, Teucrium chamaedrys, is an excellent perennial ground-cover. It grows about a foot tall and covers itself with rosy-pink flowers in early summer. Black Eyed Susan, Rudbeckia fulgida ‘Goldstrum,’ comes into full bloom in late summer with bright, golden-yellow daisy flowers. It is a tough perennial that spreads willingly.

Your waterwise garden need not be without color! Choose some of these attractive and hardy plants to brighten your landscape.

• May Day is the perfect time to celebrate spring and to brighten someone’s day with a basket of flowers.

• It’s time to put out oriole feeders. You can also attract them with fresh orange halves.

• Flower seeds can be sown directly in the garden now. Cosmos, marigolds and zinnias will give you beautiful flowers all summer.

• Plant the vegetable garden this month, but remember that late frosts can still nip tender young plants.

• Beautiful African Violets will decorate your indoor spaces with their masses of flowers in all shades of purple, blue and pink.

Waterwise Landscaping

Waterwise landscaping is an approach to landscaping that emphasizes water conservation. By using plants that are more drought tolerant your landscape will be able to survive through long dry periods with a minimum of water. Using native and Mediterranean plants, a well-designed landscape provides diversity and beauty with minimum maintenance.

Water efficient landscaping includes grouping plants together with similar water requirements, watering just to meet the plant needs and using decks and patios to enhance your enjoyment of the yard.

To create a landscape that uses minimal irrigation, the secret is to use tough, drought-tolerant plants that will grow in the amount of sun or shade available in a particular site. You can use plants that like more moisture along north and east facing slopes and walls. Don’t mix plants with high and low water needs in the same planting area.

Shrubs that will grow well in these conditions include rockroses, California wild lilac, lavenders, rosemary, manzanitas, mugo pines and junipers. In addition, common shrubs like forsythia, barberry, Oregon grape, cotoneaster, Philadelphus and lilacs can get by with occasional summer watering. These will give you a variety of sizes and textures to fill large spaces and tumble over rocks and down hillsides.

Add color to the setting with some of the many perennials that tolerate these conditions. The following plants are very drought tolerant. They should survive with a monthly irrigation once established, but you may choose to irrigate them twice per month from June through August for additional flowering.

Reliable, easy-care yarrows have flat clusters of colorful flowers and finely divided, fern-like foliage. Smaller varieties, like ‘Pomegranate,’ are low growing with 18-inch flower stems while ‘Moonshine’ grows to two feet and ‘Coronation Gold’ can reach four feet tall. They bloom through early summer.

Coneflower, Echinacea purpurea, has large, showy daisy flowers that bloom from early to late summer. Some exciting new varieties have flowers in bright reds and yellows with names like ‘Hot Coral’ and ‘Cheyenne Spirit.’

Red Valerian is a well-known plant in many older gardens, where its rosy-red flowers on tall, floppy stems bloom continuously from late spring through summer. It reseeds readily and is easy-to-grow.

Sedums are often overlooked but these succulents are excellent in sunny spots with well-drained soil. From the low-growing ‘Cape Blanco’ with its attractive silver-gray foliage, to the 24-inch tall ‘Autumn Joy’ with its large domes of bright pink flowers, sedums contrast beautifully with more delicate plants.

Very large areas can be planted with a wildflower mix. Now is a good time to broadcast these seeds. The mix may include California poppy, lupine, purple coneflower, and gaillardia.

There are many more plants that will survive with watering just twice a month, which I will share next week. By designing your landscape with drought tolerant plants, you can make the most of our precious water resources.