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Fertilising guide

How to fertilise Hosta 'August Moon' (Hosta 'August Moon')— schedule & NPK

Also called August Moon Hosta, August Moon Plantain Lily.

More about hosta 'august moon'

About Hosta 'August Moon'

Hosta 'August Moon' · also called August Moon Hosta, August Moon Plantain Lily · flowering

Hosta 'August Moon' is a medium-large cultivar producing broad, rounded, softly puckered leaves that emerge chartreuse in spring and mature to a luminous golden-yellow by midsummer. It is notably sun-tolerant for a hosta and bears white, fragrant flowers in late summer. Toxic to dogs, cats, and horses.

Growth habit: Clump-forming deciduous perennial

Watch for — Yellowing in late summer: Some early leaf yellowing from late August is normal seasonal senescence as the plant begins dormancy, not a nutrient deficiency.

What fertiliser hosta 'august moon' actually wants — and why

Hosta 'August Moon' is an easy, light foliage feeder — a half-strength balanced liquid feed through the growing months keeps it green without forcing weak, sappy growth.

A balanced general houseplant feed (roughly even N-P-K) is exactly right — it is grown for foliage, so steady, moderate nitrogen for healthy leaves is the goal, not a bloom or root formula.

For the language behind the three numbers on the bottle — what nitrogen, phosphorus and potassium each do — see the NPK ratio explained entry. The short version for hosta 'august moon': match the feed to the job the plant is doing right now, not to a generic “plant food” on the shelf.

How often to feed hosta 'august moon', and which months

Feeding only earns its keep while the plant is in active growth and can use the nutrients — pour feed into a dormant or low-light plant and it simply builds up as root-burning salt. For hosta 'august moon':

Apply a balanced slow-release fertiliser in early spring. Because 'August Moon' is grown partly for its striking gold colour, a fertiliser with moderate nitrogen and good potassium and phosphorus encourages vibrant colour without excessive soft growth. Treat that as sparingly through the growing season between spring through early autumn (roughly March to September); ease off in autumn and stop entirely in the low light of winter.

The dormant-season rule matters more than the exact interval: skip feeding entirely when hosta 'august moon' is resting. For the wider context on indoor feeding rhythms across the seasons, the houseplant fertiliser schedule walks through the year month by month.

What strength to mix for hosta 'august moon'

Half strength is the safe default for hosta 'august moon' — houseplant feeds are formulated strong, and the diluted dose is gentler on the roots while still ample for foliage.

Feeding always goes onto already-damp soil, never dry roots — water hosta 'august moon' first if the soil is dry, then apply the diluted feed. The companion question is when to water at all, covered in the hosta 'august moon' watering schedule.

Signs you are over-feeding hosta 'august moon'

Over-feeding is far more common — and more damaging — than under-feeding for most plants. The classic tells for hosta 'august moon':

Signs you are under-feeding hosta 'august moon'

If the symptoms point at watering, light or roots rather than nutrition, the full hosta 'august moon' care brief covers soil, humidity and the common problems for this species.

Flushing and leaching the salts

Flush the pot of hosta 'august moon' with plain water until it runs freely from the base every couple of months in the feeding season — it washes out the fertiliser salts that cause brown tips.

Organic vs synthetic feeds for hosta 'august moon'

Organic options

A diluted seaweed or worm-casting feed, or fish emulsion if you can tolerate the smell indoors. UK: Westland or Baby Bio Organic, dilute seaweed; US: Espoma Indoor! or Neptune's Harvest fish & seaweed. Slow, gentle and hard to overdo.

Synthetic / liquid feeds

A general-purpose houseplant liquid at half strength — UK: Baby Bio, Westland Houseplant Feed or Phostrogen; US: Miracle-Gro Indoor Plant Food or Schultz. Convenient and fast-acting; the only risk is overdoing it.

Brand names are examples, not endorsements, and UK and US ranges differ — check the label’s own NPK and dilution rate, since formulations change.

Fertilising hosta 'august moon' — frequently asked questions

What fertiliser does hosta 'august moon' need?

A balanced general houseplant feed (roughly even N-P-K) is exactly right — it is grown for foliage, so steady, moderate nitrogen for healthy leaves is the goal, not a bloom or root formula. Hosta 'August Moon' is an easy, light foliage feeder — a half-strength balanced liquid feed through the growing months keeps it green without forcing weak, sappy growth.

How often should I feed hosta 'august moon'?

Apply a balanced slow-release fertiliser in early spring. Because 'August Moon' is grown partly for its striking gold colour, a fertiliser with moderate nitrogen and good potassium and phosphorus encourages vibrant colour without excessive soft growth. Apply a balanced slow-release fertiliser in early spring. Because 'August Moon' is grown partly for its striking gold colour, a fertiliser with moderate nitrogen and good potassium and phosphorus encourages vibrant colour without excessive soft growth. Treat that as sparingly through the growing season between spring through early autumn (roughly March to September); ease off in autumn and stop entirely in the low light of winter.

What strength of feed for hosta 'august moon'?

Half strength is the safe default for hosta 'august moon' — houseplant feeds are formulated strong, and the diluted dose is gentler on the roots while still ample for foliage.

What does over-feeding hosta 'august moon' look like?

Brown, crispy leaf tips and edges with no sign of underwatering. A white, crusty salt deposit on the soil surface or pot rim. Weak, pale, stretched new growth that flops. Lower leaves yellow and drop while the soil is correctly watered. Feeding hosta 'august moon' year-round on a fixed schedule, including dark winter months, is the most common mistake — it cannot use the nutrients in low light and the surplus simply burns the roots and crusts the soil.

Should I flush the soil of hosta 'august moon'?

Flush the pot of hosta 'august moon' with plain water until it runs freely from the base every couple of months in the feeding season — it washes out the fertiliser salts that cause brown tips.

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