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Sweet Peas Seeds - Royal Navy-blue
SEASON
Annual
USDA ZONES
3 - 9
HEIGHT
72 - 84 inches
BLOOM SEASON
Early summer to late summer
BLOOM COLOR
Navy blue
GROWTH RATE
Fast
ENVIRONMENT
Full sun
SOIL TYPE
Rich, well-drained, pH 6.4 - 7.6
DEER RESISTANT
No
HOUSE PLANT
No
About...
Royal Sweet Pea (Lathyrus Odoratus Royal Navy Blue) - This dark colored flower will be a deep purple or navy blue depending on soil nutrients. These vines are early flowering and can last right up until frost in fall if the summer is cool. These annuals are perfect cut flowers, so you can spice up the living room with a nice bouquet, and the flowers are pleasantly scented and are carried on long stems for easy arranging.MORE SWEET PEAS OPTIONS
Planting Directions
TEMPERATURE
64 - 68F
AVERAGE GERM TIME
14 - 21 days
LIGHT REQUIRED
No
DEPTH
1/2 inch
SOWING RATE
1 - 2 seeds per plant
MOISTURE
Keep seeds moist until germination
PLANT SPACING
2 - 3 inches for seed spacing, then thin plants later to 5 - 6 inches
Royal Sweet Pea (Lathyrus Odoratus Royal Navy Blue) - This dark colored flower will be a deep purple or navy blue depending on soil nutrients. Royal Sweet Pea vines are early flowering and can last right up until frost in fall if the summer is cool. These annuals are perfect cut flowers, so you can spice up the living room with a nice bouquet, and the flowers are pleasantly scented and are carried on long stems for easy arranging.
Grow Blue Sweet Peas in full sun, but in areas of very hot summer weather, provide some afternoon shade for the best performance. Position them away from winds and rotate locations from year to year to prevent pests. In cold climates plant the flower seed in early spring, as soon as the soil can be worked. In warm climates, plant in October through January for spring bloom.
It is best to nick the flower seeds and then soak them over night in warm water. Sow Sweet Pea seeds directly outdoors. When the Sweet Pea seedlings have 3 - 4 pairs of leaves, pinch the top of the seedling, leaving 2 - 3 pairs of leaves. This encourages a more branching habit making the Sweet Pea plants fuller.
Common Questions
Can I start sweet pea seeds inside?
Sweet pea does not like to be transplanted so starting indoors is not recommended.
Why are my plants not blooming?
Sweet peas plants prefer poor soil. Do not over-fertilize, this can give you larger plants with many leaves but few flowers. They also need full sun, at least six hours per day.
Why did my plants die out in the summer?
Sweet peas are cool season flowers and tend to die back with the summer heat.
Can I use sweet peas as a cut flower?
Yes, sweet peas make excellent cut flowers. They also have a sweet honey-like fragrance that is wonderful coming from your flower arrangements.
Are sweet pea plants or seeds toxic?
Yes, do not eat any part of the plant, especially the seeds.
Do flowers attract any pollinators to the garden?
Yes, these flowers are attractive to bees and butterflies.
Are plants deer resistant?
Yes, deer tend to stay away from these plants.
Do I need to deadhead my flowers?
Yes, to encourage a longer bloom season you will need to deadhead spent blooms.
What are some good ways to use these flowers in the landscape?
These are wonderful for arbors, pergolas, trellises, beds, borders, containers or side wall borders.
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