Gardeners that take their hobby seriously enjoy a challenge, especially when it comes to zones, frost, temperatures, and other dull scientific information.
A true plant enthusiast will buy two plants if you tell them you can only grow one. They’ll test it if you say it’s too temperate or tropical. They’ll dream about it all night if you tell them it’s too hard for them to grow. Gardeners enjoy taking risks.
One of these regional difficulties is how to cultivate and bloom peonies in Southern California. Just last week, I heard from two people who took on the peony challenge: Kathleen and Katharine. To my amazement, both mentioned having success with the Itoh Hybrids line of peony.
Kathleen relocated to north San Diego County from a colder climate a number of years ago. She was severely missing flowers.
“Last year, I bought one of the new Itoh Peonies on a whim, just to appreciate the stunning blooms,” Kathleen said.
Since they are brought here from colder climates where they have already experienced a hard winter, it is not all that surprising for a freshly acquired peony to blossom the first year.
But Kathleen’s peony didn’t act as one might anticipate. When it was no longer in flower, Kathleen put it under the cover of a tree fern and promptly forgot about it.
Kathleen added, “I utterly disregarded it by letting it sit in water.
A few weeks back, when I saw some new growth, I finally realized what had happened to the poor plant. I quickly placed it into some sunshine, and last week, buds appeared!
A reblooming peony that is barely half a mile from the coast, doesn’t require any particular care or winter protection, and only needs lots of water? That shouldn’t be possible, I think.
Then I received a message from Katharine, who has been cultivating peonies in her Glendora garden for the past five years. She has accumulated a sizable collection over that time—probably more than 25 plants—and has been able to enjoy their blossoms through mid-June.
Itoh peonies are quite powerful early blooming types, I’ve learned,” Katharine noted.
She provides mulch, fertilizer, and weed control for her peonies. She claims that none of her plants have an insect or snail problem.
After this spring, according to Katharine, she realized she probably doesn’t need to pamper her peonies quite as much. Katharine gave her justifications.
She remarked, “I forgot that the Itoh peony was sleeping underneath the site we were going to tidy up one day when I ordered my gardener to plant a Camellia.
Accidentally, the dormant plant was unearthed. The root ball, which resembled cheese curds, had been lying on the grass for a few weeks and he had no idea what it was. The bulk was finally scooped up, placed in a plastic container, and set on my driveway. It is flowering much sooner than last year since it loves the warmth of the concrete.
On the north side of her home, Katharine produces Itoh peony in full sun with some morning shade.
She claimed that the plants not only seemed to enjoy her heavy clay soil, but also the aromatic potting soil.
These peony success stories, which both include the Itoh peony series, may not be coincidences.
These peonies, which bear the name Toichi Itoh in honor of the first person to successfully hybridize a tree peony with a herbaceous peony, are treasured for their enormous, gorgeous blooms and rich green foliage.
Itoh peony have a vigorous, domed growth habit and produce enormous, double blooms with lacy, dark green foliage that is resistant to disease. They reach a height and width of around three feet, and like all peonies, they get better with age. Because itoh peonies can have both primary and secondary buds, they also have a longer flowering time.
Katharine, a peony expert, claimed that Itoh peonies had considerably stronger stems than typical peonies, which have top-heavy petals that flop.
She added, “They hold well on the stem. ” The Itoh peony made a superb cut flower, in my opinion. It makes a fantastic spring party favor when placed within a globular vase so that guests can see its beauty through the glass. You can extend those favors by getting gigantic blooms because they don’t all bloom at once. It’s undoubtedly an icebreaker at parties. The hostess present from the previous year continues to draw compliments. Nobody forgets the lovely flower in the vase, but my guests seem to forget the expensive bottle of wine.
Will peony thrive in Southern California’s temperate climate? That verdict may still be up for debate, but to peony growers Kathleen and Katharine, it is undeniably true.
Finding an Itoh peony can be your first challenge if you decide to do the peony challenge. Fortunately, a few southern California nurseries will have a very small quantity of these peonies accessible during the upcoming few weeks.
My roses appear to have black spots, I believe. What should I do or should I spray something?
In much of the nation, blackspot is a serious fungal rose disease; however, in most of Southern California, it is typically a minor issue.
However, we are experiencing a lot more blackspot than usual as a result of our unusually late rains over the previous two years.
I have two pieces of advice: if the issue isn’t too serious, don’t take any action. It should go away on its own when the weather gets warmer and dryer.
However, if the issue becomes too severe, you can use an organic fungicide like Rose Defense. Before you see improvement, you’ll probably need to use it once every seven days for a few weeks.
Can peony be grown in California?
Gardens in Southern California are ideal for Keiko peonies. Itoh peony Takara, which blooms in warm areas, is a deep rose variety. If you enjoy peaches, the Misaka peony, an Itoh hybrid suited to warm areas, can satisfy your craving. Gardens in Southern California are ideal for Keiko peonies.
Is it difficult to produce peony in California?
The peonies that resemble little shrubs and have stunning, vivid white, pink, or magenta blooms in the late spring and early summer are known as herbaceous peonies. In USDA zones 2 through 8, peonies are a longtime favorite of gardeners. Many gardeners in California long to add peonies to their landscape but think they won’t be successful since peonies require a chilly dormant period. You can take a few actions to promote peony growth and bloom in California.
What time of year do peony bloom in California?
The California peony is in season from December to May. It is a perennial, which means it grows continuously between dormant seasons. Therefore, the California peony’s limited availability (mostly restricted to spring) adds to its attractiveness, much like its conventional sibling more frequently seen in peony bouquets.
The time has come to go wild California peony hunting, so be on the lookout when you start to see fresh-cut peonies for sale!
Where can peony be found?
Now that you are aware of the distinctions between the two primary Peonies, let’s approach your choice based solely on the available information.
Location & Climate: If you reside in the extreme south or north, temperature and humidity may have a significant impact on your choice of peony.
Garden peonies will thrive if you are in a northern region with a shorter, cooler growing season. Garden Peonies are especially popular in Zones 3 through 8, where they may require a little more care.
- A tip for getting them to behave perfectly if you live in the deep south is to select an early-blooming type that will go into flower before the summer heat arrives.
- In the same way, a late-blooming Garden Peony is likely to succeed better in zone 3’s northernmost regions, where temperatures will have warmed up enough for it to flourish during their peak bloom period.
Available Sunlight: Unlike Itohs, which love dappled light and can even take part-sun, Garden Peonies require full sunlight. As a general rule, your garden will be exposed to more sun and humidity the further south you live. You should give your peony more room in hotter, brighter climates so they may receive more air circulation and perhaps a little less sun than usual.
Can peony thrive in warm weather?
Slideshow of 20 stunning peonies
What’s fresh: Herbaceous and tree peonies are crossed to create itoh hybrids, also known as intersectional hybrids. They can reach a height of 3 1/2 feet, produce flowers in lavender, pink, copper, yellow, or cream, and bloom for a longer period of time than typical herbaceous varieties.
Since their stems are more thicker and more sturdy than those of herbaceous species, they are effective in supporting large cups of petals.
Where to grow: Peonies do best in cooler regions (Sunset zones 111; A1A3), where the winters are particularly chilly. However, some will thrive in warmer environments (see list below). Under zones 1420, all are worthwhile attempts in dappled shade. There, give the plants plenty of water and midday shade.
When to plant: In late April in warmer climates, plant container-grown plants; in May or June in colder climates. In 5-gallon containers, 3-year-old peony should blossom more.
Spring or fall, from containers used for nurseries: Place the plant in the ground with the top of its rootball level with the dirt after loosening the soil and adding copious amounts of compost, being careful not to disturb the plant’s delicate feeder roots. Or move it into a sizable (18 to 24-inch diameter) container that is deeper on the outside than the inside.
Plant herbaceous peony roots with eyes 2 inches deep in cold climates and 1 inch deep in warmer climates in the fall. In cold climates, itoh hybrids should be planted 3 inches deep; in warmer climates, 2 inches deep.
How to feed and water: Water frequently. When the first leaves emerge in the spring, fertilize with a low-nitrogen fertilizer (such 5-10-10) and then once more when the final flower has faded.
When to pick: Cut stems just as flower buds start to open to harvest blossoms for bouquets; leave at least three leaves on the plant to feed it for the following year. Blooms will keep for up to a week in vases. Although Itoh hybrids generate more flowers per stem as the plants become older, the majority of cultivars only produce one bloom per stem.
After flowering, prune down herbaceous and Itoh hybrid peonies in the fall; fresh growth will appear in the spring.
Grab a peony.
For cold climates, pick: There are three new Itoh hybrids—crosses between tree peony and herbaceous peonies—called “Bartzella,” “Pink Double Dandy,” and “Yellow Doodle Dandy.” Bartzella has unusually enormous, bright yellow blooms.
Four herbaceous favorites for cool or warm climates include “Blaze,” a vivid red single, “Festiva Maxima,” a white double with crimson flecks in the middle, “Sarah Bernhardt,” or “Sea Shell” (satiny pink single).
Shop: Purchase plants (itoh hybrids can cost up to $100 at nurseries, while ordinary herbaceous can cost $40), beginning in late April in warm climates and May in chilly ones. Plants that are three years old and are housed in five-gallon containers will reliably blossom.
Visit and purchase: The 200 or so varieties of herbaceous and tree peonies at Chateau CharMarron Peony Gardens (5335 Sierra Rd., San Jose; 408/251-7048) begin flowering in late March and last through June. Visit Adelman Peony Gardens next month (May 1–Jun 15; 5690 Brooklake Rd. N.E., Salem, OR; 503/393-6185) to see 300 varieties spread across 10 acres.
How are peony cared for in Southern California?
Once planted, peonies don’t require much maintenance. Till they take root, keep the soil moist but not soggy. Once they are established, you can reduce watering to twice weekly, but the warmer summers in Southern California will require more irrigation. It is a good idea to provide some shade for your peonies until they are established if you reside in an especially warm, sunny environment.
To prevent competition for nutrients, routinely deadhead your peonies and maintain your garden weed-free. Cut down herbaceous peonies in the fall to encourage regrowth in the spring if you’re cultivating them. Tree peonies are sometimes a better option for people who live in coastal Southern California since they require fewer freezing hours in the winter. You don’t need to prune tree peony in the fall if you cultivate them.
What degree of heat can a peony endure?
While tree peonies and some early-blooming herbaceous and intersectional varieties do well in moderate areas, where they bloom from late April to early June, all peonies prefer lengthy, frigid winter temperatures. Festiva Maxima, a creamy white intersectional with pink undertones, and the rosy “Sarah Bernhardt” are two herbaceous early bloomers. “Bartzella,” a lemony yellow intersectional, will also fall dormant in climates where winter days are not frequently bitterly cold.
The majority of peony require prolonged winter chill, which is defined as periods of time when temperatures are between freezing and no higher than 45 degrees F. Most peony require 480 cool hours or more to achieve a suitable dormancy.
Herbaceous species of the three types of peony require the most hours of darkness. Herbaceous species are more likely to become dormant in mild climates if planted no deeper than 1 inch below the surface of the soil. There has to be considerably deeper planting of intersectional species and trees.
Do peony enjoy the sun’s heat?
I love peonies, but I live in a region where it could be too warm for them. Can I grow peonies in my area? is a common query. You can use the following suggestions to decide whether peonies are likely to thrive in your area.
Garden peonies prefer cold winter weather and need at least 30 days in a row with temperatures below freezing. It is not necessary for it to freeze and thaw because the objective is to maintain the roots’ chilly temperature. Before purchasing any kind of peony, think about whether you can feed your plants with enough cold weather during the dormant season so they can grow and blossom.
Choose peony kinds that bloom early in the season, before your late spring/early summer weather becomes too hot, if you live in zones 7 and 8. The description of each cultivar on this website specifies whether it blooms early, midseason, or late. Recognize that planting in zone 8 is a bit of an experiment because it indicates the edge of weather where peonies may successfully blossom. Peonies that bloom in the middle to end of the season may endure in warm climates, but they are not likely to reliably and prolifically blossom.
Your peony roots’ planting depth affects how many flowers you get. The “eyes” or tiny pink or red growth points should be planted 1 to 2 inches under the earth, with the deeper end of the spectrum being preferred in the coldest locations (zones 3-5). Zones 6 and 7 and even zone 8 gardeners who plant just 1″ or even 1/2″ deep will have the best results.
Site your peony in hot regions where they’ll get a little relief from the worst afternoon sun. The best setting is one with filtered late-day light.
Remember that peonies produce numerous large, typically heavy flowers when they are mature, wherever they are grown. (Which, I presume, is one of the reasons you adore them.) The thickly petalled double and semidouble blossom varieties have a propensity to collect rain or sprinkler water. Young plants can have ring or crisscross supports placed around them to allow shoots to grow through, stabilizing blossoming stems, and eventually blending in with the dense foliage. On the plus side, if your peonies droop in the rain, it gives you the perfect justification to cut them to your heart’s content, carry bunches to work, share them with friends, and arrange bouquets all over the house. That would be really terrible.