Anise Hyssop Care (Agastache foeniculum 'Golden Jubilee')

Agastache foeniculum 'Golden Jubilee' develops best color and flowering in bright, direct sun in most climates.

• Provide 6–8 hours of direct sun daily; morning sun with light afternoon shade suits hot summer areas.
• Tolerates light or dappled shade for 2–4 hours, but foliage may green up and flowering can decrease.
• In very intense sun, watch for scorched, bleached leaves and dry soil; in too much shade, stems stretch and flop, with fewer blooms.

Agastache foeniculum 'Golden Jubilee' prefers evenly dry to lightly moist soil and is drought-tolerant once established.

• Before watering, let the top 3–5 cm of soil dry; in average conditions this may mean watering every 5–10 days in the ground.
• Use fast-draining soil or amended garden beds so water does not pool; avoid compacted or heavy clay that stays wet after rain.
• Reduce watering in cool seasons; drooping, crisp leaves indicate underwatering, while yellowing lower leaves and persistent soggy soil suggest overwatering.

This perennial handles a wide range of outdoor temperatures but grows most actively in moderate warmth.

• Optimal growing temperatures are around 65–80°F (18–27°C), with strongest vegetative growth and flowering in this range.
• The plant is cold-hardy, surviving winter down to about -20°F (-29°C) when planted in the ground and mulched in colder regions.
• Heat-tolerant up to about 95°F (35°C) if soil is well-drained; in extended heat or hot, dry wind, expect faster drying soil and possible leaf scorch.

This plant tolerates a wide humidity range and rarely needs special humidity management outdoors.

Agastache foeniculum 'Golden Jubilee' prefers lean, well-drained soil that does not stay wet after rain or watering.

• Use a light loamy or sandy mix with moderate organic matter rather than dense, heavily amended soil.
• Aim for slightly acidic to neutral pH, roughly 6.0–7.5, which suits the plant’s nutrient uptake.
• Blend in coarse sand or fine gravel to improve drainage and prevent water from pooling around the crown.
• Avoid compacted, clay-heavy, or constantly wet substrates that encourage root rot and weak, lanky growth.

This species is well suited to container growing when drainage and root space are managed carefully.

• Select a pot at least 25–30 cm deep to accommodate the taproot and reduce tipping in windy conditions.
• Choose a heavier material such as ceramic or clay if the container is exposed, as tall flower spikes can make it top-heavy.
• Elevate the pot slightly on feet or bricks so drainage holes clear the surface and runoff does not reabsorb into the mix.

This aromatic perennial needs only light feeding to maintain healthy growth and flowering.

• Use a balanced, slow-release fertilizer (around 10-10-10) or a thin layer of compost in early spring as new growth starts.
• Apply fertilizer once per growing season in average soil; skip feeding on very rich or heavily amended beds.
• For containers, use a half-strength balanced liquid feed every 4–6 weeks during active growth.
• Stop feeding Anise Hyssop in late summer to early fall so stems harden before winter dormancy.

Thoughtful pruning helps Agastache foeniculum 'Golden Jubilee' stay compact, floriferous, and tidy.

• In late winter or very early spring, cut back previous year’s stems to 5–10 cm above soil with clean, sharp shears.
• During summer, deadhead spent flower spikes to encourage continued blooming and reduce self-seeding if desired.
• Remove dead, damaged, or crossing stems at the base to improve air flow and reduce disease risk.
• Lightly shape after the first main flush of flowers to maintain a bushy form without cutting into woody bases.

This perennial is most often grown in borders, with transplanting focused on young plants or divisions.

• Transplant in early spring or early fall when temperatures are mild and the soil is workable.
• Move plants when growth slows, clumps become crowded, or roots circle inside a container and drain holes.
• Aim to transplant garden plants every 3–5 years to refresh soil, spacing, and vigor.
• Water thoroughly before and after moving, keep roots shaded, and trim back top growth slightly to limit transplant shock.

Agastache foeniculum 'Golden Jubilee' is commonly propagated by seed, division, or softwood cuttings.

• Sow seeds in late winter to early spring on the surface of moist, well-drained mix, as light aids germination.
• Divide established clumps in early spring, replanting divisions immediately at the same soil depth.
• Take soft, non-flowering stem cuttings in late spring, using a free-draining medium and high humidity for rooting.
• Provide bright, indirect light and consistent moisture, keeping temperatures around 65–75°F for best establishment.

This hardy perennial tolerates typical winters in many temperate regions with minimal intervention.

• Plants usually withstand frost in the ground, especially in well-drained soil that prevents waterlogging.
• After hard frost, cut back spent stems to 5–10 cm, or leave some for winter structure and wildlife, tidying in late winter.
• Apply a 5–8 cm mulch layer around the root zone in colder climates, keeping it slightly away from the crown.
• For containers in very cold areas, move pots to a sheltered, unheated but frost-sheltered spot and reduce watering.