Sweet pea 'Hannah's Harmony' Lathyrus odoratus 'Hannah's Harmony'

Water

Sweet pea 'Hannah's Harmony' requires consistent moisture, so it should be watered deeply once or twice a week, allowing the soil to dry out slightly between waterings. It's best to avoid overhead watering to prevent disease; instead, water at the base of the plant. During the growing season, aim for at least one inch of water per week, which is roughly 0.623 gallons over the area of the plant's root system. In hot and dry conditions, you might need to water more frequently, keeping an eye on the soil moisture to determine when additional watering is necessary.

Light

Sweet pea 'Hannah's Harmony' thrives in full sun to partial shade. The best spot for this plant is one where it receives at least 6 hours of direct sunlight each day, though it can tolerate some light afternoon shade. Avoid deeply shaded areas, as insufficient sunlight can lead to fewer blooms and a leggy plant.

Temperature

Sweet pea 'Hannah's Harmony' prefers cooler temperatures and grows best when daytime temperatures are between 55°F and 65°F. It can tolerate a minimum temperature of about 25°F for brief periods but sustained freezing temperatures can damage the plant. Maximum temperature tolerance is around 80°F, after which the plant may cease to flower and could become stressed.

Pruning

Prune sweet pea 'Hannah's Harmony' to encourage bushiness and more blooms. Pinch back the tips when the plant is 4 to 6 inches tall. Deadheading, or removing spent flowers, promotes continuous blooming throughout the season. The best time for heavy pruning is late winter or early spring before new growth begins.

Cleaning

As needed

Soil

Sweet pea 'Hannah's Harmony' thrives in rich, well-draining soil with a pH that is neutral to slightly alkaline, around 7.0 to 7.5. The best soil mix can be made by combining equal parts of loam, peat moss, and perlite or coarse sand to ensure good drainage while retaining adequate moisture.

Repotting

Sweet pea 'Hannah's Harmony' is typically grown as an annual and therefore does not usually require repotting. If started in containers, they should be transplanted to their final growing location once they have developed strong roots and are large enough to handle the transplant process.

Humidity & Misting

Sweet peas, including 'Hannah's Harmony', prefer moderate humidity levels. Although they are adaptable, the ideal range is around 40-60%. It's crucial to ensure good air circulation to prevent fungal problems especially when grown in regions with higher humidity.

Suitable locations

• Indoor

  Use rich soil, ensure ample sunlight, and keep at cooler temps.

• Outdoor

  Plant in full sun, rich soil, and provide sturdy support for climbing.

• Hardiness zone

  2-11 USDA

Life cycle

Sweet pea 'Hannah's Harmony' begins its life as a seed, often sown in late winter to early spring. Upon germination, the seedlings emerge and develop into vigorous climbing vines with leaves and tendrils that seek support. The plant then enters its vegetative stage, characterized by the growth of stems and foliage. As the weather warms, it transitions to the flowering stage, producing fragrant, colorful blooms that are often cut for bouquets. Following pollination, the flowers develop into seed pods, and once mature, the seeds can be collected for the next planting season. Through the year, particularly in temperate climates, the plant completes its annual cycle, dying back after seed production to complete its life cycle.

Propogation

• Propogation time

  Spring

• The Sweet Pea 'Hannah's Harmony' is commonly propagated through seeds. The most popular method for propagating this plant involves sowing the seeds directly into the soil in late winter or early spring, allowing the cold temperatures to naturally stratify the seeds, which breaks their dormancy. To aid germination, some gardeners recommend nicking the seed coat or soaking the seeds in water for 24 hours before planting. Plant the seeds about 1 inch deep and space them 2 to 3 inches apart in well-draining soil. Ensure they are in a sunny location and keep the soil moist until germination, which typically occurs within 7 to 14 days. Once the seedlings have established, thin them to about 5 to 6 inches apart to give each plant ample room to grow.