To avoid mildew, sweet peas require a location in full sun, rich soil that drains very well, and sufficient air circulation. Increased organic material must be worked into clay-rich soil in order to improve drainage. Consider using raised beds for successful results if the soil is excessively wet.
If you are aware that summer heatwaves can come on suddenly, plant your sweet pea seeds where there will be some afternoon shade. For best results, carefully read the instructions on the seed packet. Proper plant spacing is essential. Slugs and snails should be kept away from seedlings. Use netting suspended over seedlings until they are 4 to 5 inches tall if marauding seed and seedling-eating birds are an issue.
Adequate water is a crucial requirement for all sweet pea varieties. If summer rain is insufficient to keep them evenly moist, be sure to water germination-stage seeds, seedlings, and vigorously growing older vines on a regular basis. If the soil is dry when your finger is inserted up to the first joint in the soil bed, water the plants.
Sweet peas are strong feeders, so add plenty of rich compost or well-rotted manure to the soil before planting. At least twice during the growing season, fertilize the soil with a thorough soil drench made up of one tablespoon of liquid kelp and one tablespoon each of fish emulsion. (Every few weeks, sweet peas grown in containers require regular fertilization.)
Aphids can be a problem for sweet peas; spray them off frequently with water. Sticky pheromone traps placed among the vines to attract and capture thrips, an opportune pest, can be used to efficiently control them. Mildew can be avoided with enough airflow and by not watering in the late afternoon and evening ( until the plants succumb to it naturally at the end of their bloom period.)
Almost any vertical support structure will allow all tall vining kinds to naturally grow up it. They will develop into strings, netting, wire, wooden, or pretty much any other sort of trellis. In the soil you can also utilize long branches that were left over after tree pruning. Wrap them in twine or netting so the tendrils can grip because they cannot twine around heavy poles like bamboo. It’s usually advisable to stay away from wire fencing in really hot climates like Texas. Before you sow the seeds or once they are a few inches tall, erect your securely anchored supports.
Between 75 and 85 percent of sweet pea seeds will germinate. There is always a little fraction that goes dormant, giving Mother Nature a refuge in the wild in case of bad weather. Only plant the seeds that have swollen and soak them in tap water for no longer than one night prior to planting in order to leave out the dormant ones. Never soak seeds; rather, nick them to let moisture seep into the seed coat for the highest possible germination rates. To accomplish this, simply cut a small hole with nail clippers in the seed’s outer layer; no chunk needs to be gouged out; this will allow moisture to enter the seed naturally. Although this nicking procedure takes more time, it will ensure excellent germination.
Plant seeds 2 to 3 inches apart and 1 inch deep. Depending on the climate and soil temperature, seeds can fully germinate between 10 to 28 days. Dig down to check if the seeds are still present if your sweet peas do not germinate well. Plant more immediately soon if they have decayed or been eaten since they will quickly catch up. It’s crucial to thin seedlings when they are several inches tall so that they stand about 5- 6 inches apart. This will provide the plants room to develop and flourish. Pinch off the top set of leaves when seedlings have three or four sets to encourage plants to branch out. Avoid significant changes in soil moisture during the active growing season by keeping sweet pea plants evenly moist. Mulching is a wise tactic.
Picking bouquets early and frequently can help you enjoy the longest season of spectacular bloom; the less you pick, the later the plants will go to seed and wither. Harvest flower stems frequently as the lowest blossom on each stalk just starts to open. Although stems may get shorter as the season goes on, the flowers are still large and gorgeous.
Sweet Peas Species
Our common garden sweet pea is the annual species Lathyrus odoratus; you can find them in a variety of colors and growth patterns, including:
tall varieties of vines
Depending on the region and season, these robust vines can grow to be 5 to 10 feet tall and produce numerous flower stems over a six to eight week bloom period. Tall vining plant species come in a variety of floral shapes:
Intense breeding efforts have been made in England to produce tall vining “Spencer” cultivars with bigger, waved and ruffled exquisite flowers. Because English breeders typically have been more focused in petal shape, form, stem length, and color than in perfume or weather tolerance, some Spencers are quite fragrant while others are very faintly so. Nowadays, Spencer kinds can be used to describe the majority of large-petalled, ruffled sweet pea cultivars. We stock the scented Spencer type “Blue Celeste.”
Mammoth and Royals are two American cultivars developed in the middle to end of the 20th century that have good-sized flowers, a light perfume, and are widely available. Since our only area of expertise is scented sweet peas, we do not provide these varieties.
Variety of Containers & Window Boxes
These tiny plants look great in containers and have stems that are 8 to 10 inches in length or have spreading and mounding characteristics. The heirloom varieties “Windowbox Cupid” and “Cupid Color Palette” are available from us.
Short, unable-to-climb Dwarfs
These sweet peas are short and don’t require vertical supports, with some varieties being tendril-less. It’s “Explorer” for us.
Other Species of Sweet Peas:
In the West, the perennial Lathyrus latifolius is frequently observed as a naturalized roadside wildflower. The cultivated form of this perennial, which is far more drought tolerant than annual sweet peas, can be trained to grow into an appealing and dependable permanent hedge plant. Although the flowers are plain, small, and odorless, their shape makes me think of miniature orchids. They come in rose, pure white, and shell pink. We market these colored mixtures as “Garden Orchids.” In zone 4 at Sweet Pea Gardens in Surrey, Maine, where they are quite hardy and over ten years old, Susan Keating has planted perennial sweet peas as a tall blooming screen on the side of her garage. Their flowering stalks also make lovely arrangement flowers.
This diminutive sweet pea, Lathyrus sativus azureus, features 1 inch dazzling azure-blue flowers and tangled grassy leaves. Plants only reach heights of 3 to 4 feet. attractive landscape accents in pots with minimal supports. We offer “Electric Blue” for sale.
Dr. Hammett is attempting to stabilize hybrids between several annual species in order to bring together lovely form and scent with fresh colors and heat tolerance. For home gardeners, the next ten years will bring some interesting new advances, such as real tricolor sweet peas and non-fading orange and apricot colours, all of which have potent fragrances.
Sweet Peas in Containers
Gardeners with patios, decks, or merely tiny gardening spaces can take advantage of the short, mounding kinds of sweet peas, like “Color Palette,” to enjoy their beauty and delicious smell. These small vines, which only reach a height of 8 to 10 inches, have delicately cascading branches and fragrant blossoms. A rose-pink and white bicolor as well as a combination of lavender, pink, dark purple, and mahogany are among the colors. Plant seeds immediately in deep containers with a minimum 8-inch diameter or rectangular window boxes with a minimum 6-inch depth in the very early spring. Always place seeds in planting containers 1 inch deep and 3 inches apart, in uniformly pre-moistened, high-quality, fresh potting soil. Germination takes 10 to 28 days when kept uniformly wet and in full sun.
Make sure to thin seedlings to 4 inches apart after they reach 2 inches in height (so, for example, you would leave 4-5 evenly spaced plants in a 12 inch in diameter container.) Plants can spread out and expand as a result as they get older. It’s crucial to remember to fertilize container sweet peas frequently (every two weeks) and to maintain them well-watered. Defend plants from snails and slug damage. Remove faded blossoms on a regular basis for the longest bloom. Mulch your containers and provide them with afternoon shade during the summer to extend their bloom.
Sweet pea blossoms last how long?
I grew up spending a lot of time with my great-grandparents and summers in the country. I had the responsibility of keeping fresh flowers on my Grammy’s nightstand. She had many lovely flowers blooming in her garden, but the one I most vividly recall is the tangle of rainbow-colored sweet peas clinging to the posts of her carport.
I immediately planted a giant tunnel of sweet peas in the middle of the garden after we purchased our first home. I was transported back in time to the summers of my youth and the pleasant recollections of collecting flowers in Grammy’s garden as the first blooms bloomed that spring.
I’ve grown and tested close to a hundred different sweet pea varieties over the years, including both heirloom and hybrid varieties, in a number of studies I’ve carried out over the years. Even while they have all been lovely, I do have a few favorites and a small number of them that I simply cannot live without.
Sweet peas can be planted in the fall in warmer climates (zones 7 and higher), where the winters are generally not too harsh. Other than that, plant seeds in late winter or early spring.
Before planting, give the seeds a 24-hour soak in water. By doing so, the seed coat is softer and the sprouting process is accelerated. See our resource, How to Grow Sweet Peas, for further information on seed sowing.
It might be challenging to keep up with the harvest once the vines start to produce blossoms. To catch blooms at their peak, I comb the rows every other morning.
Choose stems with at least two unopened flowers at the tip for the best vase life. Although they can be chosen when more open, they won’t last as long in the vase. Sweet peas only endure 4 to 5 days in a vase, making them a transient cut flower. A few extra days can be added by sweetening the water or adding a floral preservative.
Please be aware that sweet pea seeds are toxic if consumed, unlike garden pea seeds. Be cautious when around kids and animals.
WHITE ‘Memorial Flight’ (seen above, left) is one of the most fragrant whites we grow and has enormous, ruffled, creamy-white flowers with a green undertone. outstanding for wedding work.
‘White Frills’ (upper middle) is a dependable performer and one of the best whites you can grow. It has thick, robust leaves and a powerful growth habit. Large, pure white flowers with ruffles with a strong fragrance. Real workhorse in the garden!
One of the best varieties available, “Jilly” (above right) is a wonderful shade of smooth cream and has won multiple prizes for good cause. It makes a great cut flower due to its long, sturdy stems and amazing aroma. Blush-pink blossoms with delicate blush-pink edges adorn tall, sturdy stems of BLUSH PINK ‘Anniversary’ (shown above left).
‘High Society’ (upper middle) is one of our most fragrant types and has a charming feminine aspect. Warm candy pink lines the edges of creamy blossoms. outstanding for wedding work.
The ‘Pearl Anniversary’ flower (above right) has creamy white petals with streaks of cerise-pink. incredibly good for wedding work. Unfortunately, this variety did not yield enough seed for the 2020 growing season; but, we are happy to provide it for the 2021 growing season. VERY PINK ‘Daily Mail’ (seen in the image above left) is a show-stopper with big, vivid cerise-pink blooms perched on long, sturdy stems. excellent for trimming
The lovely, classic variety “Carlotta” (upper middle) has endured the test of time. In both the garden and the vase, its vivid carmine-pink blossoms are striking. It’s a tremendous winner thanks to its long stems and powerful aroma.
“Dynasty” (top right) is a hardy grower and an excellent cut flower all around, with bright, hot pink blossoms on long, sturdy stems. It has a cream bottom with paler upper buds, giving it a three-dimensional appearance. A true success!
A new favorite, PEACH/CHAMPAGNE ‘Piggy Sue’ (seen above, left), has stunning colors and glows in the garden. It has a vintage, romantic atmosphere because to its strongly perfumed, cream-colored petals that are delicately edged in blush.
The long-stemmed, sweetly fragrant beauty ‘Castlewellan’ (above center) is a new favorite. It has enormous, bright peachy-pink blooms with creamy undertones. It’s perfect for wedding décor because of its gentle appearance. An essential!
On long, sturdy branches, ‘Marjorie Carrier’ (above right) bears the most exquisite big, ruffled salmon-pink blooms. It is a floral arranger’s delight because to its stunning colour and pleasant aroma.
Dr. Keith Hammett’s new variety “Bix” (seen above, left) has a classic appeal. One of the first types to bloom, the blooms are cream in color with an apricot-pink tinge. Average bloom count is five on tall, profusion-filled stems. a wonderful selection for bridal bouquets.
The softest peachy-pink blush surrounds the outside border of the ‘Jill Walton’ (above center) flower’s enormous, creamy, ruffled flowers, giving them an ultra-feminine appearance. one of our five most preferred types.
‘Mollie Rilstone’ (top right) is one of our farm’s all-time favorites and a sure thing. The most delicate apricot-pink lines the edges of the very fragrant, cream-colored blooms. Flowers of this cultivar fade to a bright cream, giving it an old-fashioned, Victorian appearance. incredibly well-liked for weddings. CORAL/ORANGE One of our all-time favorite varieties is “Geoff Hughes” (shown above on the left). This sweet pea with big flowers has cream blossoms with coral streaks. abundant flowering and excellent cutting qualities.
Beautiful new variety ‘Edith Flanagan’ (upper center) was bred by Andrew Beane. On its long, sturdy stems, it features enormous coral flowers. It’s a terrific winner thanks to its wonderful aroma and eye-catching colors.
The huge brilliant coral blossoms of the cultivar “Florencecourt” (upper right) fade to white in the center, giving them a three-dimensional appearance. A true victor!
The attractive variety “Happy Birthday” (seen above on the left) has eye-catching orange-red petals with a white throat. It’s perfect for cutting because the flowers are supported by tall, sturdy stems.
The name “Raspberry Flake” (upper center) is appropriate for this type that attracts attention. Flowers painted in cream with rich, almost metallic raspberry streaking. No two flowers are the same because saturation levels vary.
The jovial flowers of ‘Restormel’ (above right) almost appear to shine at night. We are reminded of maraschino cherries with warm coral-red blossoms that nearly appear manufactured. Our all-time favorite is this aromatic variety. An essential! PURPLE Dr. Keith Hammett created the beautiful tricolor variety “Enchante,” which is a brilliant combination of cherry pink, white, and lavender. At Floret, people affectionately refer to it as the “unicorn sweet pea. It is very wonderful and is high on our list of plants we must grow.
One of my all-time favorites, “Erewhon” (upper center), is a reverse bicolor with delicate pink standard petals and a dark lavender-blue rim. It has tall, robust stems and is excellent for cutting. An essential!
Dr. Keith Hammett’s spectacular bloomer “Blue Shift” (above right) changes from mauve-pink to an iridescent blue-turquoise as it ages. Nothing else on the market is like it. Despite testing hundreds of different variations, “Nimbus” (seen above on the left) remains one of my personal favorites and the greatest flake variety on the market. Dark eggplant-colored edges and deeply streaked inky gray flowers. A great topic of discussion for everyone who comes to the farm. You are in for a wonderful treat if you haven’t yet grown this beauty!
The novelty variety “Sir Jimmy Shand” (upper center), with its white blooms striped with vibrant lilac, has become a fan favorite. This cut flower has tall stems and a great scent.
If you love purple, you must grow “Richard & Judy” (top right), a long-stemmed, intensely fragrant cultivar. Warm, multi-dimensional flowers with a grape hue sparkle in the garden. Outstanding among the sweet pea varieties! MAROON The must-grow variety “Suzy Z” (seen above, left) has a beautiful metallic gray base with rich maroon veining. Similar to the perennially well-liked “Nimbus,” but more chocolate-maroon in hue.
Dr. Keith Hammett developed the distinctive brown-red flaked type known as “Chocolate Flake” (upper center), which appears to have been coated with cocoa powder.
‘Windsor’ (above right) is a stunning plant in the garden with warm, cocoa maroon blooms that really make a statement. It’s a great kind for cutting because the flowers have a rich fragrance and are supported by long, sturdy stems.
Your knowledge of sweet peas would be very interesting to me. Do you plant them or have any plans to include them in your garden this year? If so, which varieties are your favorites?
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