Knee High, Sweet Pea Seeds

Knee High Sweet Pea Seed

Bushy twelve-to-eighteen-inch plants suit containers and borders
Fragrant flowers appear in pink, purple, white, and red
Compact habit brings sweet peas into smaller gardens
Cool conditions support their best color and performance

See product details

Key Attributes

Botanical Name

Lathyrus odoratus

Days to maturity

70 Days

Sun

Full Sun

Packet

50 Seeds

About Knee High, Sweet Pea Seed, Sweet Pea Seed

Knee Hi Mix sweet peas are a charming and versatile variety of sweet peas, known for their compact growth and vibrant array of colors. Originating from traditional sweet pea cultivars, this mix has been selected for its ability to produce a dazzling assortment of blooms in shades of pink, purple, white, and red. Their delightful fragrance and colorful display make them a favorite for borders, garden beds, and floral arrangements.

Growing details

Planting

Sow Depth

1/2"

Days to Germination

7–21 days

Germination Type

N - Nick Seed Coat

In-row plant spacing

12-18"

Plant profile

Life Cycle

Annual

Plant Height

24 inches

Growth Habits

Compact, Vining

Seed & variety

Seeds Per Ounce

338

Color

Multicolor

Seed Type

Open Pollinated

Before Planting

Choose a cool, full-sun site with rich, well-drained soil and afternoon shade where summers are hot. Incorporate compost and install a trellis before sowing. Soak seed briefly or nick hard seed coats if desired, but discard damaged seed and avoid prolonged soaking.

Planting

Direct sow sweet peas in early spring as soon as soil can be worked, or sow in fall where winters are mild. In very cold areas, start them indoors 4–6 weeks early in deep cells that protect the roots. Keep the medium evenly moist and cool. Transplant carefully, and direct climbing shoots onto their support as growth begins.

Watering

Once established, sweet pea prefers deep, infrequent watering. Let the surface dry between irrigations, supply extra moisture during extended heat, and avoid keeping the crown continuously wet.

Fertilizer

Fertilize sweet pea according to soil-test results, usually without added nitrogen. Excess nitrogen reduces nodulation and favors excessive foliage, while phosphorus or potassium may be needed on deficient soils.

Harvesting

Sweet Pea flowers are ready when stems are firm and blooms show mature color without fading. Cut during cool, dry conditions; for seed, leave selected heads until brown and dry.

Tips

Train sweet peas onto netting while stems are young and pick flowers frequently to extend bloom. Seeds and pods are toxic if eaten; clearly distinguish ornamental sweet peas from edible garden peas.

Pests & Diseases

Ascochyta blight, powdery mildew, downy mildew, Fusarium wilt, and viruses affect sweet peas. Use pathogen-free seed, rotate legumes, and keep vines dry. Remove plants with stem lesions, persistent wilt, or mosaic. Never save seed from spotted pods or allow diseased residue to remain.

Sweet Pea may attract sap-feeding aphids and leafhoppers, chewing beetles, weevils, and cutworms. Scout new growth and pods, use physical removal, and preserve lady beetles and other beneficial insects.