Larkspur Delphinium 'Gillian Dallas'
ABOUT
The Delphinium 'Gillian Dallas' is a visually striking plant characterized by its brilliant blooms that showcase a range of colors from deep blues and purples to lighter shades of lavender. The flowers are densely packed along tall spikes that rise proudly above the plant's foliage. Each bloom has a distinctive central "bee" or "eye," which is often a contrasting white or dark color, adding depth and intricacy to the visual display. The foliage of 'Gillian Dallas' is comprised of deeply lobed leaves that are generally a bright green in color, providing a lush backdrop for the dramatic flowering spires. The leaves are arranged in a way that creates a handsome, bushy habit, with a texture that can be described as somewhat coarse to the touch. Overall, the 'Gillian Dallas' makes a bold statement in any garden setting with its regal and colorful floral displays, which are particularly favored by gardeners for creating vertical interest and a classic cottage garden look. The plant's blooms are not only admired for their beauty but also for their ability to attract an array of pollinators such as bees, butterflies, and hummingbirds, which are enchanted by the plentiful supply of nectar.
About this plant
NamesFamily
Ranunculaceae
Synonyms
Larkspur, Candle Larkspur
Common names
Delphinium 'Gillian Dallas'
ToxicityTo humans
The Delphinium 'Gillian Dallas', commonly known as Larkspur, is toxic to humans. Ingestion of any part of the plant can lead to poisoning. Symptoms may include nausea, vomiting, abdominal pain, and diarrhea. More severe effects can involve nervous system problems such as muscle weakness, tremors, or paralysis. In some cases, consuming Larkspur can also result in respiratory failure or even death due to the presence of alkaloids like delphinine.
To pets
Larkspur is also poisonous to pets. Ingestion can cause similar symptoms as those experienced by humans, including gastrointestinal distress like vomiting and diarrhea, as well as nervous system impacts such as muscle tremors or seizures. In severe cases, it can lead to respiratory failure and can be fatal, particularly to animals like dogs, cats, and horses. Pet owners should prevent their animals from having access to any part of the Larkspur plant.
CharacteristicsLife cycle
Perennials
Foliage type
Deciduous
Color of leaves
Green
Flower color
Blue
Height
4-6 feet (1.2-1.8 meters)
Spread
1-2 feet (0.3-0.6 meters)
Plant type
Herb
Hardiness zones
3
Native area
Europe
Benefits
General Benefits- Visual Appeal: Delphinium 'Gillian Dallas', commonly known as Larkspur, features tall spikes of vibrant blue flowers that add dramatic height and color to garden landscapes.
- Attracts Pollinators: The flowers provide a valuable nectar source for bees, butterflies, and other beneficial insects, encouraging pollination of garden plants.
- Versatility in Landscaping: Larkspurs can be used in a variety of garden settings such as borders, cottage gardens, and as a backdrop for lower-growing plants.
- Seasonal Interest: It blooms in early summer, providing visual interest during a time when many spring flowers have faded and summer flowers have not yet peaked.
- Cutting Garden Plant: Delphinium 'Gillian Dallas' is suitable for cutting gardens, providing long-lasting cut flowers that are ideal for floral arrangements.
- Color Combinations: The vivid blues can be effectively combined with a range of other colors in the garden, such as yellows, pinks, and whites, for stunning contrasts.
- Structural Height: It adds vertical interest to gardens, drawing the eye upward and can be used to create depth and structure in planting designs.
- Garden Themes: Its stately appearance is perfect for traditional or formal garden themes, yet it also fits well in informal and wildflower settings.
Medical PropertiesThis plant is not used for medical purposes.
Air-purifying QualitiesThis plant is not specifically known for air purifying qualities.
Other Uses- Delphiniums can be used as a natural fabric dye, providing a range of colors from blues to purples, depending on the mordant used.
- In the garden, they can serve as a trap crop for pests, luring them away from more valuable plants.
- Delphinium petals can be pressed and included in crafts like handmade paper or botanical bookmarks.
- Used in small quantities, they can add visual interest to compost piles that will eventually nourish garden soil.
- Their tall and striking stalks make excellent natural supports for floppier, lower-growing plants that might otherwise need staking.
- Delphinium stems can be hollowed out and used by children as natural pea shooters or for blowing bubbles.
- During winter, dried delphinium stalks can provide structural interest and habitat for beneficial insects in the garden.
- They can be incorporated into a natural garden fence, providing both aesthetics and a degree of privacy.
- Delphiniums can be used as a teaching tool for botany, illustrating plant structure and pollination to students.
- Their flowers can serve as inspiration or actual subjects for artists, such as in flower photography or botanical illustrations.
Interesting Facts
Feng ShuiThe Delphinium is not used in Feng Shui practice.
Zodiac Sign CompitabilityThe Delphinium is not used in astrology practice.
Plant Symbolism- Heavenly or Divine Connection: Delphiniums are often associated with celestial themes due to their spikes pointing upwards like a spire reaching towards the sky.
- Protection: In ancient times, people believed that delphiniums could ward off evil spirits and negative energies, providing a safeguarding presence.
- New Opportunities: Delphiniums symbolize new life and opportunities, akin to embracing challenges and opening up to novel experiences.
- Arbitrary Affection or Big-heartedness: These flowers are linked to feelings of fondness and open-heartedness, representing strong bonds of love.
- Lightness and Levity: The airy nature of delphinium blooms suggests a sense of carefreeness and joy, inviting lightness into one's life.
- Encouraging Communication: Giving delphiniums can signify a desire to communicate openly and enter into dialogue with the recipient.
WaterLarkspur requires consistent moisture, especially during the growing season. It is generally recommended to water larkspurs deeply once a week, providing about 1 inch of water each time to encourage deep root development. In periods of drought or extreme heat, you may need to water more frequently to keep the soil from drying out completely. Avoid overhead watering to prevent diseases; instead, use a soaker hose or aim the water directly at the soil level. It is crucial not to let the plants sit in soggy soil, so ensure good drainage to prevent root rot.
LightLarkspur thrives best in full sun, which means at least six hours of direct sunlight each day, although they can tolerate some light afternoon shade. The ideal location for larkspur is a spot where it can receive ample morning sunlight, which is less intense, helping to promote vigorous growth and vibrant blooms. In areas with very hot summers, a location with some protection from the harsh midday sun is beneficial to prevent sunscald.
TemperatureLarkspur prefers cooler temperatures and thrives in environments where daytime temperatures are between 65 and 75 degrees Fahrenheit. They can survive minimum temperatures down to about 40 degrees Fahrenheit but are not tolerant of high heat well above 85 degrees Fahrenheit. For optimal growth, larkspur should be planted in an area where the temperatures remain within their preferred range throughout the growing season.
PruningPruning larkspur is important to maintain a neat appearance and to encourage a second flush of blooms. After the first bloom, cut back the flower stalks by one-third to one-half to promote new growth. Larkspur should be pruned again in the late fall, cutting back the spent foliage to the ground after the first hard frost. Deadheading, or removing spent flowers, throughout the growing season can also help prolong blooming.
CleaningAs needed
SoilThe best soil mix for Larkspur (Delphinium 'Gillian Dallas') is well-draining and fertile with added compost or well-rotted manure. It prefers a slightly alkaline to neutral pH range of about 6.5 to 7.5. Ensure good drainage to avoid root rot.
RepottingLarkspur (Delphinium 'Gillian Dallas') does not typically require frequent repotting as it is a perennial and often grown directly in the garden. Repotting is generally only necessary if it outgrows its container or starts to look unhealthy.
Humidity & MistingLarkspur (Delphinium 'Gillian Dallas') tolerates average garden humidity levels, but it does not thrive in excessively humid conditions as high humidity can promote fungal diseases.
Suitable locationsIndoor
Ensure good light and airflow for indoor Larkspur growth.
Outdoor
Full sun, well-draining soil, protect from strong winds outdoors.
Hardiness zone
3-7 USDA
Life cycleThe life cycle of the Delphinium 'Gillian Dallas', commonly known as larkspur, begins with seed germination, typically in the spring when the soil temperature is right and moisture levels are adequate. The plant then enters a vegetative state where it develops a rosette of basal leaves, followed by the formation of a central flowering stalk as it matures. Larkspur blooms in early to mid-summer, producing tall spikes of purple-blue flowers, which attract pollinators such as bees and butterflies. After pollination, seeds develop and are dispersed from the spent flower heads late in the summer or fall. During the winter, the plant typically goes dormant, especially in colder climates, dying back to the crown where it conserves energy for the following growing season. With the return of favorable temperatures and day lengths in spring, the larkspur completes its perennial cycle, regrowing from the rootstock to restart the process.
PropogationPropogation time
Spring-Early Summer
Propogation: The most popular method of propagating the Delphinium 'Gillian Dallas', commonly known as Larkspur, is by seed. Propagation by seed typically begins in late winter to early spring. To propagate by this method, one should first chill the seeds for about a week at 41°F (5°C) to enhance germination. Next, sow the seeds thinly in trays or pots filled with a well-drained seed starting mix and lightly cover with soil. The trays should be kept at a temperature of about 65-75°F (18-24°C) and kept moist but not waterlogged. Germination usually occurs within 2 to 3 weeks. Once seedlings have developed two sets of true leaves, they can be transplanted to individual pots before eventually being moved to their final position in the garden after the risk of frost has passed.
