98 - 112 days. Knee High Mix sweet pea seeds grow into one of the most recognizable, popular, and nostalgic blooms ever! Sweet pea Knee High Mix blooms are a floral shop favorite and promise to complement your own fresh cut arrangements and bouquets. Knee High Mix seeds are ideal for growing in limited spaces because the semi-dwarfed plant does not truly climb and vine out like other varieties of sweet pea. Knee High Mix sweet pea seeds are easy to grow and promise a vivid mix of lavender, scarlet, cream, pink, purple, red, and white blooms.
Growing Knee High Mix Sweet Pea Garden Seeds
- Taxonomy: Lathyrus odoratus
- Seed Type: Annual
- Sow Indoors or Outdoors: For direct outdoor sowing, select a sunny location with organic material worked into the soil as soon as the frost has passed. To maximize growth, plant seeds at the bottom of a 6” trench. Germination will take about 12 days. When plants are established, fill trench in gradually until ground is level. In mild climates, plant in September through November. Or sow in spring indoors 4 – 6 weeks before final frost then transplant.
- Days to Maturity: 98 - 112 days
- Hardiness Zone: 3 – 10
- Planting Depth: Plant 3 - 4 seeds 1” deep
- Plant Spacing: 12”
- Growth Habit: 24 – 32” tall tight bushes with long, straight stems of 5 – 6" florets each
- Soil Preference: Rich, fertile, well-drained
- Light Preference: Full sun
- Diseases/Pests/Troubleshooting: Water soil directly to minimize wetting foliage which causes mold and powdery mildew. Sweet pea is known to be susceptible to some pests, most commonly aphids. Monitor regularly for slugs and snails.
- Color: Mix of lavender, scarlet, cream, pink, purple, red, and white
For direct outdoor sowing, plant 3 - 4 Knee High Mix sweet pea seeds 1” deep and 12” apart in rich, fertile, and well-drained soil in full sun after the last frost. To maximize vigor and growth, plant Knee High Mix seeds at the bottom of a 6” trench. Germination will take about 12 days. Once sweet pea Knee High Mix plants are established, fill trench in gradually until ground is level and plant continues to grow. In mild climates, plant Knee High Mix sweet pea seeds in September through November. Or plant in spring and sow indoors 4 – 6 weeks before final frost then transplant. Water soil directly to minimize wetting foliage which may cause mold and powdery mildew. Knee High Mix sweet pea is known to suffer from some pests, most commonly aphids. Monitor regularly for slugs and snails. Sweet pea Knee High mix seeds mature at 98 - 112 days as 24 – 32” tall tight bushy habits with long, straight stems of 5 – 6" florets each with a mix of lavender, scarlet, cream, pink, purple, red, and white.
Lathyrus odoratus is native to the Mediterranean region specifically Sicily, Cyprus, southern Italy, and the Aegean Islands. Sweet pea was first discovered around 1699 and in the 19th century, English horticulturalist Henry Eckford bred and hybridized the plant for the larger and brighter blooms coveted by Victorian-era gardens.


