Product description
Agastache, commonly known as the Giant Hyssop, is a striking perennial that brings a touch of elegance to gardens with its tall stems and large, spherical clusters of blue flowers. The strap-like green foliage forms a lush base, making it an excellent choice for borders, beds, and containers. Its impressive floral display and architectural form add both colour and structure to outdoor spaces.
Thriving in well-drained soil under full sun, Agapanthus is well-suited for UK gardens. Blooming from July through September, it complements other summer-flowering plants, enhancing the seasonal palette. This hardy perennial is also drought-tolerant once established, making it a low-maintenance addition to various garden settings.
Ideal for gardeners seeking long-lasting summer colour, Agapanthus can be grown in patio pots or directly in garden beds. The vibrant blue flowers are not only visually appealing but also attract pollinators, supporting local biodiversity. Additionally, the blooms make excellent cut flowers, allowing you to bring their beauty indoors.
Please Note: Images are for illustrative purposes only and designed to be a representation of the item(s) being sold. Depending on seasonality, deciduous plants may be supplied in their dormant state and without leaves. Plants may also be pruned back, lower than stated heights, to encourage new growth.
Garden Plant Size Guide
Plants in larger pots can be multiple years older than their smaller counterparts with more mature root systems and foliage. This makes them able to thrive as a full size plant in your garden quicker than smaller alternatives.
The most common size of pot that garden plants come in are 9cm/1L/3L/5L this is in reference to the diameter at the top of the pot.
9cm potted plants still remain the most popular cost effective option though, they just may take a little patience to allow them to grow into full maturity once planted in your garden.
Plant specs, care guide & tips
Key features
Specifications
When to plant
Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec |
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Planting and period of interest times are general guidelines and may vary based on your location and conditions. For best results, consult local gardening resources.
Instructions
Top Tip
Mulch or use horticultural fleece to protect the plants roots against frost damage in winter.
How to Water
Water regularly, keeping the soil consistently moist between spring and early autumn. Provide water more sparingly outside the growing season.
How to Plant
Choose a sunny sheltered spot and ensure the soil drains freely. Dig a generous hole and position the plant inside, planting with the crown just below the surface. Fill the hole in with soil, gently firming with your foot and water in well.