Canna Phosphorus (P 20%) Mono – Single-Element Bloom Feed
Canna Phosphorus (P 20%) Mono – Single-Element Bloom Feed
£9.99 per litre · 1L
In stock
Couldn't load pickup availability
Share
Order by 3pm Mon–Fri — we aim to post same day · FREE Express Delivery over £60 · 1–2 working days · Free Wembley pickup
- 14-day returns
- Price match promise
- Free Wembley store pickup
- Advice from the team: 020 3488 0419
Pairs well with
Description
Correct a phosphorus deficiency without disturbing your other nutrients
Canna Phosphorus (P 20%) Mono is a straight, single-element supplement rather than a complete feed - it lets you correct a specific phosphorus shortfall or give flowering a targeted push without changing the balance of everything else you're feeding. Being fully liquid, the phosphorus is readily available to the plant the moment it's watered in, driving the energy transfer (ATP), root development and flower formation that phosphorus underpins.
Key Benefits
- Single-element formula - correct phosphorus without altering nitrogen or potassium.
- Liquid, fast-acting - absorbed directly, unlike slow-release granular phosphorus sources.
- Supports flowering by supplying an element central to energy transfer and flower development.
- Works alongside your main feed as a mononutrient top-up, not a replacement.
- Suitable across media - use in soil, coco or hydro when a targeted correction is needed.
Spotting and fixing a phosphorus deficiency
Phosphorus deficiency tends to show as dark, dull or purplish-tinged leaves, slow growth and weak stems, and is often mistaken for a cold-related issue since low root-zone temperatures also reduce phosphorus uptake. Canna Phosphorus Mono corrects this directly, rather than adjusting your whole feed and risking other elements going out of balance.
How to Use
- Dilution: 10-20ml per 10 litres of water (a 1:1000 to 1:500 ratio), using the higher end for a more severe deficiency or a stronger flowering push.
- When: apply during watering as needed, not every feed.
- Caution: avoid overdosing - excess phosphorus can trigger secondary potassium, calcium and trace-element lock-out, so stay within range and watch plant response.
- pH: phosphorus uptake is best around pH 6.0-6.5 in soil/coco and 5.5-6.0 in hydro.
Technical Specifications
- Type: single-element (mono) phosphorus supplement
- Phosphorus content: P 20%
- Form: liquid concentrate
- Dilution rate: 10-20ml per 10L (1:1000 to 1:500)
- Suitable for: soil, coco and hydroponic systems
| Purpose | Per 1 L | Per 10 L |
|---|---|---|
| Targeted correction, higher end for a severe deficiency | 1–2 ml | 10–20 ml |

FREE Express Delivery on orders over £60. We aim to post same day on Express Delivery — order by 3pm Mon–Fri — and delivery takes 1–2 working days. A few harder-to-stock or large, bulky items can take a little longer — we'll tell you if that applies to your order. Heavy-item surcharges are always shown at checkout before you pay — we only ever charge what delivery costs us. Prefer to collect? Free pickup at our Wembley store.


