
LIFE CYCLE
Perennial
PLANT CHARACTERISTICS
Ornamental
GROWTH HABIT
Upright / Clumping
BLOOM SEASON
Summer–Fall
FLAVOUR PROFILE
Non-edible / Decorative
SUITABLE FOR
Outdoor
SEED TYPE
Open-pollinated
PLANT TYPE
Perennial flowering plant
PLANTING SEASON
Spring
FRUIT SIZE
N/A
PLANT HEIGHT
60–90 cm
LIGHT REQUIREMENT
Full sun
WATER NEEDS
Low–Moderate
HARDINESS ZONES
4–9
CONTAINER GARDEN
Yes
PLANT SPACING
Moderate
PLANTING DEPTH
Surface / Shallow
GROWING CONDITIONS
Well-drained soil
Frequently Asked Questions
Is Sea Holly suitable for sandy garden soil?
Is Sea Holly suitable for sandy garden soil?
Yes. Sea Holly generally suits well-drained, sandy soil and tolerates relatively dry conditions after establishment.
Why are Sea Holly stems useful for dried arrangements?
Why are Sea Holly stems useful for dried arrangements?
Its structured flower heads and sturdy stems can retain visual interest after drying.
Can Sea Holly work in a rock garden?
Can Sea Holly work in a rock garden?
Yes. Its upright form and preference for well-drained soil make it suitable for rockery designs.
How much watering does established Sea Holly need?
How much watering does established Sea Holly need?
Water moderately while young; once established, allow the soil to dry between waterings.
What gives Sea Holly its blue appearance?
What gives Sea Holly its blue appearance?
The flower heads and surrounding structures develop a distinctive blue-toned ornamental appearance.
Can Sea Holly be grown in a container?
Can Sea Holly be grown in a container?
Yes. The product specifications list container gardening as suitable with proper drainage.