Delphinium ambiguum
SPECIMEN · FROM THE LIBRARY
Delphinium ambiguum

Delphinium Ambiguum

ON THIS PLANT
A note from PlantMom

Rocket larkspur has good resistance to disease and is generally not prone to illnesses. However, it can be vulnerable to pests and diseases present in its surroundings. These outbreaks are usually mild. Care-wise, this plant requires moderate maintenance. It should be pruned regularly to maintain an attractive appearance and healthy growth. Fertilizing can also help encourage flowering. Rocket larkspur is appropriate for anyone with outdoor space, such as a garden or patio, and does not need much gardening experience. It may demand more attention when grown indoors.

— PlantMom
CARE GUIDE

How to keep Delphinium Ambiguum.

Light

Rocket larkspur flourishes in locations that have unobstructed access to sunlight throughout the day and can endure areas where the sunlight is somewhat moderated. Insufficient sun exposure can potentially inhibit its development, whereas excessive amounts don't notably cause any harm.

Temperature

The Rocket larkspur is native to environments where the typical temperatures vary between 68 and 95 °F (20 to 35 ℃). It thrives in warm weather, but can withstand some degree of change. Adjustments to seasonal temperatures may be required for its best possible growth.

Fertilizer

When the Rocket larkspur has most of its flowers fully bloomed, it indicates the appropriate moment to recommence fertilization. Start the fertilizing procedure once every three to four weeks, provided the weather conditions are suitable, when the flowers are flourishing the most. However, when the Rocket larkspur begins to generate fewer new flowers, cease fertilizing as there's no requirement for additional nutrients when the plant is not capable of producing more flowers.

Pot & Repot

During the repotting process of Rocket larkspur, choose a container that's 1-2 inches (2.5-5 cm) wider in diameter, with a focus on excellent drainage. Opt for a potting blend that provides good drainage and think about adding perlite for additional drainage capacity. Perform the repotting in spring or at the start of summer, drench completely with water, and then place it in a location with less sunlight initially.

CHARACTERISTICS

Botanical profile.

Plant Type
Herb
Life Cycle
Annual, Perennial, Biennial
Genus
Delphinium
Family
Ranunculaceae
Hardiness Zone
6-9
Mature Height
0.61 m to 1.22 m
Mature Spread
30 cm to 61 cm
Leaf Color
Green
Leaf Type
Deciduous
Flower Color
Blue, Purple, Pink, White
Flower Size
5.08 cm
Bloom Time
Late spring, Early summer, Mid summer
Planting Time
Spring
Harvest Time
Mid summer
ALSO IN THE LIBRARY

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