Soil & potting mix
Best soil for Centennial Hops (Humulus lupulus 'Centennial')
Also called Centennial hops, Super Cascade.
More about centennial hops
About Centennial Hops
Humulus lupulus 'Centennial' · also called Centennial hops, Super Cascade · edible
Centennial, nicknamed 'Super Cascade', is a dual-purpose American hop with higher alpha acids and an intense citrus-floral aroma. It is a vigorous twining perennial bine that dies back each winter and climbs 4-6 m up support strings the following spring. Grow it in full sun with deep, fertile, free-draining soil and tall vertical support.
Preferred mix: Deep, fertile, free-draining loam
Watch for — Sparse first-year cones: A young rhizome invests in establishing roots, so first-year cone yield is light. Expect a marked jump in vigour and harvest from the second and third years onward.
Why centennial hops needs this mix
Centennial Hops is a hungry, thirsty crop — it wants a rich, moisture-retentive but free-draining loam, well fed and never baked dry.
- Centennial Hops grows fast and has a big crop to fill, so it draws heavily on both nutrients and water — a lean mix simply cannot keep up.
- Plenty of organic matter holds moisture evenly, which prevents the stress problems (bolting, bitterness, blossom-end rot) that come from a drying-then-flooding cycle.
- It still needs structure: rich does not mean airless, so grit, perlite or leaf mould keeps roots oxygenated.
For the full picture on what makes up a good mix, see our guide to the main types of soil and potting media — it explains why each ingredient above behaves the way it does.
What goes wrong with the wrong mix
The wrong soil is one of the most common reasons centennial hops struggles, and the damage often shows up weeks later as a watering problem. For this species specifically:
- A poor, thin or sandy mix starves centennial hops — growth stalls, leaves pale, and yields collapse.
- A heavy, compacted, badly drained soil rots the roots and brings fungal problems despite all the feeding.
- Letting a rich mix dry to dust then drowning it causes the classic moisture-stress disorders this crop is prone to.
Under-feeding and inconsistent moisture. Centennial Hops needs genuinely rich soil plus steady watering — most disappointing crops come down to one or both being short.
pH — does it matter for centennial hops?
Centennial Hops does best around pH 6.0-7.0 (slightly acidic to neutral). It is worth a cheap soil test for an outdoor bed; very acidic soil benefits from a little lime well before planting.
If you want to check or adjust it, the soil pH guide walks through testing and the safe ways to nudge a mix more acidic or more alkaline.
DIY mix vs a bagged one
For containers a good multipurpose or vegetable compost works for centennial hops with extra feed through the season. For beds, the real win is digging in plenty of well-rotted compost or manure — that beats any bag.
Drainage and the pot
Rich but free-draining is the target: raised beds and large containers both deliver it. Mulch heavily to even out moisture and roughly halve how often you water.
Centennial Hops is usually grown for a single season, so "repotting" means starting fresh each year — never reuse exhausted, disease-prone compost for the same crop family. When the time comes, our repotting guide for centennial hops covers the timing and technique step by step.
Centennial Hops soil — frequently asked questions
What is the best soil mix for centennial hops?
3 parts compost-amended loam or quality multipurpose compost : 1 part well-rotted garden compost or manure : 1 part perlite or grit (containers) / leaf mould (beds). Centennial Hops grows fast and has a big crop to fill, so it draws heavily on both nutrients and water — a lean mix simply cannot keep up.
Can I use normal potting soil for centennial hops?
A poor, thin or sandy mix starves centennial hops — growth stalls, leaves pale, and yields collapse. For containers a good multipurpose or vegetable compost works for centennial hops with extra feed through the season. For beds, the real win is digging in plenty of well-rotted compost or manure — that beats any bag.
Does centennial hops need a special pH?
Centennial Hops does best around pH 6.0-7.0 (slightly acidic to neutral). It is worth a cheap soil test for an outdoor bed; very acidic soil benefits from a little lime well before planting.
Should I buy a bagged mix or make my own for centennial hops?
For containers a good multipurpose or vegetable compost works for centennial hops with extra feed through the season. For beds, the real win is digging in plenty of well-rotted compost or manure — that beats any bag.
How often should I refresh the soil for centennial hops?
Centennial Hops is usually grown for a single season, so "repotting" means starting fresh each year — never reuse exhausted, disease-prone compost for the same crop family. Rich but free-draining is the target: raised beds and large containers both deliver it. Mulch heavily to even out moisture and roughly halve how often you water.
Keep reading
- Centennial Hops care — the full brief (light, water, humidity, problems, pet safety)
- How often to water centennial hops — the schedule the mix feeds into
- Repotting centennial hops — when and how to refresh the mix
- Soil pH guide — test it and adjust it safely
- Should I water my plant? The simple check first
- Why is my plant wilting? Wet vs dry diagnosis
- Underwatered plant — signs and how to rehydrate it
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- All 5561 soil and potting-mix guides in the Growli library