Sweet peas are one of the few annual flowers with enduring appeal and rural charm. They appear to be the exact opposite of our hurried life as they twine languidly around a rustic trellis. Sweet peas are fantastic flowers for gardens and bouquets thanks to their alluring scent. For information on how to plant and care for sweet peas, read our Sweet Pea Growing Guide!
About Sweet Peas
The sour pea Lathyrus odoratus is an annual flower that looks great twining on a trellis or arch, growing in a cutting garden, border garden, or woods. Today, a wide variety of hues, from pearly white to ice cream pastels to ritzy magentas and inky purples, are available for the blooms.
Only their honey and orange blossom fragrance matches their delicate winged flowers. Their appeal has been ensured by the combination of their exquisite aroma and their capacity to generate a large number of flowers for the house over an extended time of cutting.
One of the keys to cultivating sweet peas is to sow them early. Sweet peas are incredibly tough, despite the way they appear fragile. Plant them in very late winter or early spring in USDA Hardiness Zone 7 or colder, as soon as the soil is dry enough to work with. (Don’t plant seeds after the last frost.
When Dr. Robert Uvedale, a teacher from Enfield, Middlesex, received seeds of this exceedingly fragrant annual in 1699 from a Sicilian monk named Francis Cupani, he brought the first sweet peas to Britain. In North America, they gained enormous popularity as garden plants and cut flowers. By the late 1800s, producers in California, especially W. Atlee Burpee, were exporting trainloads of sweet peas across the nation and creating numerous new varieties.
Some people liken the process of producing sweet peas to that of preparing pie dough. Some individuals are gifted, while others are not. This plant sprouts from large, manageable seeds that resemble peas. They are still rather challenging since they take a while to germinate. It’s worthwhile to experiment with various seeds every year.
When to Plant Sweet Peas
- Sweet peas should be planted as soon as the soil is dry enough to work in very late winter or early spring in most places where frosts occur frequently (Zone 7 and colder). (Start sowing before the last frost! Most certainly, it will be too late.)
- Plant sweet peas in the late fall (November) if you garden in a region with a mild winter climate (Zones 8, 9, or 10), so they can grow and blossom in the late winter and early spring. Six weeks before you plant the seeds, dig a trench and fill it with compost or well-rotted manure to obtain the greatest show. Sweet peas are gregarious plants that require a lot of nutrient-rich materials to flourish.
Sowing Sweet Peas Indoors
- Start sweet peas inside in a seed tray to get a head start on the season in the coldest regions of the nation. Sweet peas can withstand light frosts, so plant out as soon as the soil can be worked in early spring, around 6 to 7 weeks before the last date for frost.
- The seeds’ outer layer is softened and helped to germinate by soaking them overnight. Using a nail file to lightly score the outer shell can also be beneficial.
- 2 seeds to a module is fine to sow the seeds, but keep in mind that their lengthy roots have a propensity to tangle and can make separation challenging. Sow the seeds around half an inch deep in each cell of a seed tray.
- Scoop them out gently after they start to sprout their first pea-like leaves and place them in a larger container to harden off. One of the most reputable growers of sweet peas gave me the following piece of advice: “Treat the seedlings like I would treat my husband: put them in an unheated greenhouse, neglect them, and they will thrive.
- Plant them outside as soon as the soil can be worked.
Sowing Seeds in the Ground
- Sweet peas thrive when their roots are firmly planted in cold, wet soil and their heads are exposed to sunlight. Plant low-growing annuals in front of them if you can to provide shade for the roots.
- Pick a spot that drains effectively. If your soil tends to be acidic, it is recommended to add some powdered lime to the surface.
- Mix liberal amounts of compost or well-rotted manure into the ground to a depth of two feet to create a rich soil. (Learn more about adding amendments to the soil and getting it ready for planting.)
- You should dig a beautiful, deep “compost trench” that is around 4 inches deep before planting.
- After digging the trench, use a pencil to cut holes, place the seeds inside, and then press down on the earth to compact it and block out any light.
- The seeds should be soaked in water for 24 hours prior to sowing. To hasten sprouting, nick the seeds with a nail file before planting. In a temperate climate, seeds don’t need to be soaked.
How to Grow Sweet Peas
- Depending on the soil temperature, germination after planting can take anywhere from 7 to 15 days.
- Fill in the trench gradually as the seedlings appear and develop. Hoe additional dirt toward them.
- Keep the soil wet. Summer rains may be plentiful. Sweet peas can have bud drop; if you stick your finger into the soil bed to its first joint and the soil is dry, water them at the soil level and do so in the morning.
- You won’t need to fertilize if you plant with a lot of compost and aged manure. Use high potash feeds if you do want to supplement the diet because nitrogen feeds promote excessive top development.
- Mulch well after plants are established to keep the soil cool and moist. Unless the soil becomes dry, you might not need to water your sweet peas if you mulch.
- Pinch off the tops when plants are 6 inches tall, not sooner, as this will promote the production of side shoots too early.
Provide Supports
- When temperatures rise above 65°F, sweet peas will begin to fade since they like chilly days and nights.
- Sweet peas are true climbers, with the exception of the bush forms. Provide them with sufficient support for at least 6 feet. Some species can reach heights of nine or ten feet. Other visually-pleasing supports are bamboo poles in a tee-pee style, a woven willow obelisk, or a trellis. If you don’t have a fence or trellis, give them something to cling on, such chicken wire, bushy twigs, or brush.
- Give the plants a good start by tying the first few stems to the support; the rest will follow. When they reach a height of 4 to 8 inches, use your thumb and forefinger to pinch out the middle growing point. Plants will grow stronger as a result.
Picking Flowers
- Pick flowers frequently for bouquets so that the plant will focus its energy on producing additional blooms rather than seeds. Up until the first frosts, the more you pick, the more they produce.
- Allow a couple of the final blossoms to mature into seedpods when the leaves begin to lose their color. On a windowsill, dry them, and then keep in an envelope in a dry location to sow the following year.
From miniature bedding kinds ideal for pots and borders without support to 8-foot-plus scramblers, there are sweet pea varieties for every setting.
These decorative peas are native to Sicily, where they have flimsy stems and a powerful orange-jasmine-honey aroma. Modern hybrids feature larger blooms and stronger stalks.
However, some of these contemporary kinds, despite having larger blossoms and more fashionable colors, lack the earlier sweet peas’ perfume. Sweet pea ‘Cupani’ is still deservedly well-liked and simple to grow. It has bi-colored flowers with maroon upper petals and violet “wings.”
The decadently fragrant “America” is an antique from 1896. When its petals open, beautiful red and white wavy stripes are revealed.
Look for antiques like the Sicilian “Old Spice” collection. Shades of white, cream, pink, lavender, and purple can be seen in this strain’s blossoms.
A new cultivar with enormous, creamy-yellow blooms with violet shading called “April in Paris” is aromatic.
Although the ordinary sweet pea is an annual, Lathyrus latiflolius, a perennial broad-leaved everlasting pea, is not fragrant. These clambering plants have a height of up to 6 or 7 feet, are hardy to zone 5, require little care, and bloom continuously from year to year.
- An essential component of a late Victorian garden is the sweet pea. Because of their wide range of colors and aroma, Victorians adored sweet peas.
- When the dew is still on the flowers in the morning, gather them. Their best aroma is at this time.
Can peas still be planted in April?
Nothing compares to the delightful flavor of peas straight from the garden in terms of sweetness. They are fresh candies from nature! One of the earliest crops of the year, peas are planted as soon as the land can be worked, even if snow follows. See our growing advice for peas, from planting to harvesting!
About Peas
Peas are incredibly simple to raise, however they only have a very short growing season. It’s crucial to plant them in the springtime early enough for them to mature while the temperature is still cool. (This refers to planting in most of the United States and Canada in February, March, or April.) In warmer areas, they can also be cultivated as an autumn or winter crop.
Enjoy the flavor of peas as soon as you can because they don’t keep fresh for very long after harvest. The taste of the peas you get in grocery shops, which are frequently starchy, is incomparable to garden-fresh peas.
Most garden and culinary requirements can be met by three types of peas:
- The seeds (peas) of sweet peas, also known as garden peas or English peas (Pisum sativum ssp. sativum), are extracted from inedible pods.
when to plant sweet peas
When between October and April, plant sweet pea seeds. Aim for late October or late November or late February or early March for the best outcomes because midwinter temperatures and light conditions aren’t the optimum. In April or May, sweet peas can also be planted directly into the ground. During a moderate period between March and May, sow your sweet pea seeds and plants.
When can I plant outside sweet peas?
Sweet peas are available in a wide variety of hues and designs. The majority will only reach a height of 5 or 6 feet, while shorter “bush type” variants are ideal for containers. Pick a few different varieties to extend the flowering season. Find types that bloom early (“short-day”) and late by reading the seed packs (“long day). Even though annual sweet peas predominate, perennial sweet peas are also available (Lathyrus latifolia).
Start early
It’s crucial to start sweet peas (Lathyrus odoratus) blossoming early so they can survive the summer heat because they like chilly temperatures. As soon as the soil can be handled in the spring, you can plant them outside. The seeds will likely be alright even though it will likely still be very chilly. Sweet peas can be planted in the south in late fall for late winter or early spring blossom. Consult local cooperative extension to learn about best practices in your community.
Start your peas inside for the longest blooming season possible. Timing is determined by the date of your region’s last frost. Back up the date by four to six weeks once you get it. You should then plant. For instance, you should plant in early to mid-April if your last frost date is May 15. Don’t know when your region last experienced frost? Consult local cooperative extension or a reliable gardener in the area.
Sweet peas can they withstand frost?
As annual plants, sweet peas (Lathryus odoratus) complete their whole life cycle in a single growing season. This traditional flower germinates well in cool environments, but if the plants are not covered, frost and freezing temperatures can cause damage to sweet peas. Direct sow sweet peas outdoors in late fall in warmer areas to enhance winter and spring blooms. Young seedlings can survive cold snaps if they are shielded from abnormally low temperatures.
Tip
Sweet peas can withstand a slight frost, but immature seedlings can freeze in temperatures below 25 degrees Fahrenheit. To ensure your cutting garden flowers will endure chilly nights in the early spring, protect sweet peas when low temperatures are anticipated.
What grows best in April?
Unanimously, yes! April has officially arrived, which means that the soil in your garden is warming up. Following your last frost in all zones, April is the optimum time to plant the majority of your vegetable seeds. To plant tomatoes and peppers from seeds, it is still not too late! View the list of veggies that can be planted in April below. Verify the last frost dates for your planting zone.
Based on your location’s Hardiness Zone, the flower, vegetable, and herb varieties listed below are excellent choices for planting in April.
Bush beans and pole beans are the two primary varieties of beans found in gardens (zones 3-10). Beans shouldn’t have been planted indoors, so plant both bush and pole varieties now when the soil and air are warm. An ongoing 7–10 day seeding of many types will result in continuous bean crops rather than a single massive harvest with wasted crop. Finding Out More: Growing Beans: A Guide Recommended varieties: Golden Wax, French Garden
Beets (Zones 3-10): Available in a range of colors and shapes, beets are an excellent cool-weather vegetable. Beets can be sown right now in all Zones for a quick, early summer pleasure! Study More: Growing Beets: A Guide Recommended Varieties: Chioggia’s Early Wonder
Cabbage is one of the simpler vegetables to grow in the garden (zones 3-10). A magnificent summer crop will result from seeds sown in April! When the cabbage head starts to form, be sure to fertilize and water. Choose a variety that is suitable for your environment (size and maturity length). Study More: Growing Cabbage suggested varieties: Michihili, Golden Acre, and Late Flat Dutch
Carrots (Zones 3-10): Both people and animals enjoy carrots as a tasty summer treat. An early summer crop will be produced if seeds are sown in April. Study More: Growing Carrots: A Guide Recommended varieties: Rainbow Mix, Little Finger, and Scarlet Nantes
Corn (Zones 3-10): This crop grows quickly! Fresh corn from the stalk is great when grilled, boiled, or steam-cooked. Two weeks after the last frost, plant a small plot of corn and work your way up to a big field of various varieties. Study More: Tips for Growing Corn Recommended varieties: Honey Pick Sugar, Butter, Obsession, and Sweet.
Zones 3-10): Cucumbers can be grown as a fast-growing vine or bush that bears a profusion of cucumber fruits over the summer. Picking a variety for your garden should take into account the available space. When the last spring frost has passed, cucumbers can either be planted directly or transplanted three weeks later. Study More: Growing Cucumbers: A Guide Variety suggestions Boston Pickling, Spacemaster 80, and Burpless Bush Slicer
Eggplants (Zones 3-10): Eggplants make a fantastic meat substitute and may be found in a variety of shapes and hues, including white, orange, and light purple. Study More: Growing Eggplant Recommended varieties: High Market in Florida Bush, Rosa Bianca
Herbs (Zones 3-10): If you want to plant outside now, you can start with heat-loving herbs like basil, oregano, cilantro, thyme, and sage. Herbs are fantastic to grow indoors year-round. Study More: Tips for Growing Herbs Recommended varieties: Broadleaf Sage, Slow-Bolting Cilantro, Greek Oregano, Italian Basil, and Slow-Bolting Cilantro
Lettuce (Zones 3-10): Because lettuce grows quickly, you can space out your crops for a continual crop. It’s best to plant lettuce in the late spring for late summer and early fall harvests. Study More: Growing Lettuce: A Guide Recommended Varieties: Garden Leaf Blend, Iceberg, and Parris Island Cos.
Melons (Zones 3-10): Melons are a must-have for family picnics and hot, long summer days. Plant seeds indoors and move them outside after 6 to 8 weeks. Study More: Melons: How to Grow Them Recommended varieties: Rocky Ford Green Flesh, Honey Rock, and Tasty Bites
If you haven’t already, you should start transplanting or straight sowing onions in April (zones 3-10). Choose an onion variety that is suitable for your garden zone with caution. Plant long day onions if your climate is milder, and short day onions if your temperature is warmer. Study More: Growing Onions: A Guide Variety suggestions Ailsa Craig Exhibition, White Sweet Spanish, Red Grano
Peas (Zones 3-10): Planting should begin in April for sweet green peas and sugar peas, which will thrive in the springtime and yield an abundance of May crops. Study More: Growing Peas: A Guide Recommended varieties: Alderman, Sugar Ann, and Dwarf Grey Sugar
Peppers (Zones 3-10): When planted closely together, fresh, crisp peppers can yield large quantities and are a garden favorite. The best time to plant as many different types is in April! They come in a variety of sizes, intensities of heat, and hues. If you haven’t already, now is the time to plant your peppers outside! Study More: Growing Peppers: A Guide Notable types include Joe Parker, Early Jalapeno, and King of the North.
Summer squash is a delicious summer treat when roasted or grilled (zones 3-10). Summer zucchini and squash will be produced if summer squash is planted in late April. Finding Out More: Squash Planting Tips Recommended Varieties: Early Prolific Straightneck, Garden Spineless, Scallop Blend
(Zones 3-10) Tomatoes: Invest in starting your tomato seeds right now if you haven’t already. Fresh tomatoes from a garden are delectable, but they can also be canned or used in sauces and other dishes. Study More: Tips for Growing Tomatoes San Marzano, Sun Gold, Bradley, and Red Zebra are suggested varieties.
Flowers, both annual and perennial (Zones 8-10) In order to get your flowers ready for summer blossoms, April is a fantastic time to start sowing them indoors. Annuals: Zinnias and marigolds Tidal Wave Silver Petunias are perennials.
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