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Blue giant-hyssop (Agastache foeniculum)-i
Blue giant-hyssop (Agastache foeniculum)-i
Blue giant-hyssop (Agastache foeniculum)-i
Blue giant-hyssop (Agastache foeniculum)-i
Blue giant-hyssop (Agastache foeniculum)-i
Blue giant-hyssop (Agastache foeniculum)-i
Blue giant-hyssop (Agastache foeniculum)-i
Blue giant-hyssop (Agastache foeniculum)-i
Blue giant-hyssop (Agastache foeniculum)-i
Blue giant-hyssop (Agastache foeniculum)-i
Blue giant-hyssop (Agastache foeniculum)-i
Blue giant-hyssop (Agastache foeniculum)-i

Blue giant-hyssop

Scientific name
Agastache foeniculum

Basic Information

Lamiaceae Family Agastache Genus Blue giant-hyssop Species
Lamiaceae > Agastache > Agastache foeniculum
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  • Forb/herb
  • Perennial
Height
60cm ~ 150cm
Flower Color
Leaf Color
Anthesis
summer
Sunlight Exposure
Full Sun
Hardiness Zones
4-10
Cold resistance
Excellent
Heat resistance
Good
Habitat of origin
North America
Growth Rate
Normal

What is Blue giant-hyssop (Agastache foeniculum)?

What is Blue giant-hyssop (Agastache foeniculum)

The herbaceous perennial Agastache foeniculum, or Blue giant-hyssop, can attain heights approaching four feet. Originating in central and western regions of North America, its versatility enables cultivation across diverse edaphic environments. Though devoid of edible yield, the medicinal and gustatory assets engender usage as apothecary. Its floral display amasses colorations traversing the visible spectrum, congregating densely on elongate racemose inflorescences. Despite absence of comestible fruit, the nectar and charming aesthetic recruit pollinators. In therapeutic contexts, attributes of relaxation and digestion are ascribed.

Megan
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Flower meaning

The flower with the scientific name Agastache foeniculum represents creativity in the symbolic language of flowers in America. Its vibrant indigo petals evoke tranquility. Though the perennial lacks association with any birth month, its emblematic significance applies year-round. The peaceful plant inspires artistic ingenuity. Its calming azure blooms kindle imaginative contemplation and promote peace of mind. Appreciate the beauty and symbolism by gifting bouquets or cultivating gardens containing the inspirational flora. Let its presence spark innovative thinking and serene awareness.

Megan
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Calendar of Blue giant-hyssop (Agastache foeniculum)

Calendar

The Blue giant-hyssop is scientifically known as Agastache foeniculum. This perennial plant is originally from the US. The plant typically blooms starting in the middle of summer through late summer. More specifically, it blooms from July until September. When it blooms, it produces lovely clusters of tube-shaped flowers that bring in pollinators like bees and butterflies. The Blue giant-hyssop flowers look their best in August when they are completely open and vibrantly colored. This plant's bloom time usually lasts for a few weeks, making a delightful display in gardens and nature. To help the blooms last longer, it's recommended to regularly remove the dead flowers. Removing the spent flowers encourages more new blooms to form. Also, giving the plant adequate sun, well-drained soil, and regular water can help make the blooms last longer.

Megan
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How to grow Blue giant-hyssop (Agastache foeniculum)

Watering

The plant Agastache foeniculum, also referred to as Blue giant-hyssop, needs a precise watering plan to grow well. In the growing season from spring to autumn, this species prefers steady damp soil. It is best to thoroughly water the Agastache foeniculum once weekly, giving around 1 inch (2.5 cm) of water. This allows the roots to get enough moisture without becoming waterlogged. However, it is vital to check the soil moisture level and adapt the watering frequency appropriately. In periods of heavy rain, it may be necessary to reduce how often you water to prevent overwatering. During the dormant season in winter, the Blue giant-hyssop needs less water. It is advisable to reduce watering to once every two weeks, letting the soil dry out a bit between waterings. This helps avoid root rot and other moisture-related problems.

Megan
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Soil and Fertilizer

The plant commonly called Blue giant-hyssop thrives inside well-watered, nutrient-dense earth containing organic materials. Apply equal amounts of nitrogen, phosphorus, and potassium during spring. Higher nitrogen and lower phosphorus and potassium ratios are optimal in summer. Reverse the ratios for fall.

Megan
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Sunlight and Place

The blue-flowered giant hyssop plant needs total sunlight for ideal development. This perennial can withstand frigidness to -20°C and hotness up to 40°C so it thrives in diverse climes. Ideal growth happens between 20-25°C. Don't let it become parched in summer but allow frost exposure in winter. Situate where it gets 6+ hours of direct sun daily for essential light.

Megan
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Advanced Information of Blue giant-hyssop (Agastache foeniculum)

Pruning

Blue giant hyssop's scientific term is Agastache foeniculum. It thrives with methodical pruning for ideal contours and development. Pruning eliminates unhealthy or wounded branches for circulation, patterning, and control of enlargement. Trimming also fosters airiness and impacts flowering. Spring initial expansion is the optimal moment to prune. With clean, pointed shears, cut to approximately six or eight inches above ground level. The formation of vigorous, bushy stalks is thus motivated. Debris and fallen foliage must be eliminated thereafter around the vegetation to prevent disease spread. An organic cover applied to the base may hold fluid and limit weed sprouting. Appropriate hydration and nurturing will also back recovery and wellbeing. When managing Blue giant hyssop, wear gloves constantly since the essential oils may irritate the skin on some. Pruning should be careful to preserve main stems and the longevity and liveliness of this plant.

Megan
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Planting and Harvest

Blue giant-hyssop, scientific name Agastache foeniculum, blooms as a perennial herb cultivated in pots or planted outside. Potting requires a container with holes underneath to drain excess fluid. Pack the planter with quick-drying dirt, making space for root expansion. Gently lift the herb from its store box, avoiding damage to the roots. Put the herb in the pot, checking the top of the root ball is level with the top of the soil. Add more earth to fill gaps and lightly compress to anchor the herb. Give the herb plenty of water after potting and situate it where there is complete or partial sunlight. If the herb outgrows its pot, shift it to a larger container using the same steps. For outside planting, select an area with fast-draining earth and ample sunlight. Excavate a cavity somewhat bigger than the root ball and put the herb in the hole, verifying it aligns with the bordering soil. Refill the cavity with soil, softly packing around the herb. Give the herb ample water after planting and keep watering regularly, particularly in dry periods.

Megan
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Propagation

Blue giant-hyssop is spread by multiple propagation methods including placing fully grown seeds, breaking into segments, stem pieces, and leaf parts. To spread through planting mature seeds, obtain seeds when ripe and put them in a pot with good drainage. Keep damp and give sunlight for seeds to sprout. To divide, cautiously separate into smaller sections, ensuring each part has roots. Put these pieces in pots or outside, giving water until roots form. To propagate with cuttings, take stem parts with two segments. Remove lower leaves and put the cut end in rooting chemicals. Place the cuttings in a potting mix and keep moist until roots emerge. Leaf parts can also spread plants. Take healthy leaves and put in a container of damp soil. Maintain consistent moisture and indirect light. Roots will form from the base, generating new plants. Harvesting occurs when the plant is grown and wanted plant parts like leaves or flowers are fully formed.

Megan
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Pests and Diseases

The aromatic herb blue giant hyssop may be affected by various insects and fungal diseases in the garden. Sap-sucking aphids can swarm tender stems and stunt development. Mites spin silken webs and extract cell contents, mottling foliage. A white fugal bloom denotes powdery mildew, eliciting curled, withered leaves. Overly sodden soil nurtures root-decaying pathogens. Promoting air circulation, amending drainage, and applying insecticidal soaps or targeted fungicides prevents infestations. Monitoring for early signs allows rapid response to safeguard plant health. With vigilance, the home gardener can cultivate thriving stands of this ornamental perennial.

Megan
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Habitat of Blue giant-hyssop (Agastache foeniculum)

Habitat

Toxicity of Blue giant-hyssop (Agastache foeniculum)

Health Benefits

edible
edible
Toxic
No toxicity

NO DATA

Toxic for dogs and cats

NO DATA

Q&A of Blue giant-hyssop (Agastache foeniculum)

  • Is there a recommended way to choose Agastache foeniculum?