Agastache mexicana BIO P12

Planting Agastache mexicana BIO

Agastache mexicana, often known as Mexican Giant Hyssop, is a fragrant, upright perennial herb valued for its colourful flower spikes and aromatic foliage. This organic (BIO) variety is ideal for herb gardens, borders, and pollinator-friendly planting, attracting bees and butterflies throughout the summer.

Choosing the right position

• Prefers full sun for best growth and flowering
• Thrives in warm, sheltered locations
• Ideal for borders, herb gardens, and wildlife-friendly planting
• Suitable for containers in sunny positions
• Avoid exposed, cold, or overly damp areas

Soil requirements

• Requires well-drained soil to thrive
• Prefers light, sandy or loamy soils
• Tolerates moderately fertile soil conditions
• Does not tolerate heavy, waterlogged soils
• Improve drainage with grit or sand if needed

How to plant

• Dig a hole twice the width of the root ball and similar depth
• Position the plant so the root ball sits level with the soil surface
• Backfill with soil and firm gently
• Water thoroughly after planting
• Space plants around 30–45cm apart
• Apply a light mulch to help retain moisture

Planting in containers

• Use a pot with good drainage holes
• Fill with a free-draining compost mix
• Choose a container that allows room for growth
• Water well after planting and allow excess water to drain
• Place in a sunny, sheltered position

Ongoing Care and Maintenance

Agastache mexicana is relatively low maintenance and performs well in sunny, well-drained conditions.

Watering

• Water regularly during the first growing season
• Once established, it is drought tolerant
• Water during prolonged dry periods
• Container plants require more frequent watering
• Avoid overwatering, especially in cooler weather

Feeding

• Apply a light, balanced fertiliser in spring
• Avoid excessive feeding, which can reduce flowering
• Plants generally perform well in moderately fertile soil
• Container plants may benefit from occasional liquid feeding

Pruning and deadheading

• Remove spent flower spikes to encourage continuous blooming
• Lightly trim to maintain a compact shape
• Cut back faded stems during the growing season
• Cut back hard in late autumn or early spring
• Regular deadheading prolongs the flowering period

Mulching

• Apply a light mulch in spring to retain moisture
• Helps suppress weeds and improve soil structure
• Avoid heavy mulching in wetter soils
• Keep mulch away from the crown of the plant

Seasonal Care and Common Issues

With proper care, Agastache mexicana BIO will provide long-lasting colour and attract beneficial wildlife.

Seasonal performance

• Produces upright spikes of pink to purple flowers from summer into autumn
• Highly attractive to bees, butterflies, and other pollinators
• Aromatic foliage adds interest and can be used in herbal teas
• Provides height and structure in mixed borders

Winter care

• Moderately hardy but may need protection in colder areas
• Cut back dead growth after flowering or in early spring
• Apply mulch in autumn to protect roots in colder climates
• Ensure excellent drainage to prevent winter losses
• In colder regions, consider growing in containers for protection

Common problems

• Root rot can occur in poorly drained soil
• Plants may become leggy if grown in too much shade
• Poor flowering may result from overfeeding or lack of sunlight
• Generally pest-resistant due to aromatic foliage
• Winter losses may occur in wet or heavy soils

Agastache mexicana BIO is a beautiful and useful addition to any garden, combining ornamental appeal with wildlife benefits and herbal uses. Its long flowering season and drought tolerance make it ideal for low-maintenance, sunny planting schemes. With good drainage, plenty of sunlight, and minimal care, it will thrive and provide colour and fragrance throughout the growing season

• Size
  P12

We currently only deliver within the island of Ireland, other countries can be quoted for by contacting [email protected] or via telephone on 06964084
 

Standard Delivery is FREE on orders over €250*

All standard deliveries will be completed within 5-7 working days via Fastway Couriers, any delay to this delivery time, the customer will be notified by One of our staff.

The in-Store delivery charge will vary compared with online, in-store delivery charge is done on a case by case basis. 

* Only mainland Ireland addresses qualify for free delivery.
 

Live Plants Delivery

Our live plants are packed with care and diligence by our staff, our horticulturists review each plant before despatch to ensure quality is maintained.
Live Plant delivery charges are not calculated on weight but on the space required per package to ensure safe delivery, so delivery charges may vary as some plants require more space than others when packed.
All live plants are despatched within 3-5 working days where possible, our couriers aim to deliver within 48 hours of despatch from our Garden Centre to allow the plant to arrive in healthy condition.
 

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