Plant Magic Oldtimer Organic Bloom — Natural Flowering Nutrients for Soil-Grown Plants
Best for: Growers wanting proper organic bloom nutrients that won't burn plants and actually improve flavour and soil health
Our thoughts
This is one we genuinely rate. Oldtimer Bloom does exactly what organic nutrients should do — feeds your plants cleanly, builds soil biology, and produces noticeably better results without the chemical taste or burn risk. It's been around for over a decade for good reason. One we recommend a lot for soil growers who care about what they're growing.
Plant Magic Oldtimer Organic Bloom is a liquid organic base nutrient formulated specifically for the flowering phase. Built from natural EU-approved organic ingredients, it's designed to support strong fruit and flower production whilst actively feeding the beneficial microbes in your soil. Unlike synthetic bloom nutrients, this encourages your growing media to do the work alongside the plant — which is the whole point of organic growing.
How it compares
Oldtimer sits in the established mid-range of organic bloom nutrients, with some clear advantages.
- NPK of 3-5-4 — higher nitrogen than some organic competitors, better for vegetative overlap into early bloom
- Not certified organic yet, but formulated with only natural EU-approved organic components — produces results equal to or better than certified alternatives
- Designed specifically for hand-watered soil systems, not hydroponic or automated drip setups
- Long track record — over 10 years in the market with consistent customer loyalty
- Works across multiple crops — vegetables, fruits, ornamentals, flowering plants — not just one-trick
In practical terms, you're getting a genuinely effective organic bloom nutrient at a price that doesn't require a second mortgage.
Usage guidance
Oldtimer Bloom is used during the flowering phase of your growing cycle. Here's how to get the best from it.
Hand-watered soil growing
Add 2-4ml per litre of water, depending on plant size and appetite. Feed every 2-3 waterings, ensuring 10-20% run-off each time. Start from week 3 of flowering and continue through to flush. Always shake the bottle well before use.
Soil biology support
This nutrient actively feeds beneficial microbes in your root zone, which in turn support better nutrient uptake and root health. To maximise this, pair it with dechlorinated water (use Ecothrive Neutralise to remove tap water chlorine) and consider adding a quality microbial inoculant like Ecothrive Biosys.
System compatibility
Hand-watered soil only. The organic particles in this feed can clog automated drip systems, so it's not suitable for run-to-waste hydroponic setups.
Complementary products
Works best as part of the Oldtimer range — pair with Oldtimer Grow during veg and Oldtimer PK during late flowering for a complete organic programme.
Technical specifications
- Type: Liquid organic base nutrient
- NPK Ratio: 3-5-4
- Total Nitrogen (N): 3.0% (0.9% ammoniacal, 2.1% nitrate)
- Phosphorus (P2O5): 5.0% (2.2% available phosphorus)
- Potassium (K2O): 4.0% (3.3% available potassium)
- Composition: Natural EU-approved organic ingredients with micronutrients
- Dilution rate: 2-5ml per litre (standard 3-4ml/L recommended)
- Available sizes: 1L and 5L bottles
- Application: Soil-grown plants, hand-watered only
- Organic certification: Not yet certified, but formulated with only natural organic components
Who this is for
- Soil growers who want to avoid synthetic chemicals and nutrient burn without sacrificing results
- Growers prioritising flavour, aroma, and crop quality over maximum yield
- Anyone building or maintaining a healthy soil food web in their growing media
- Hand-watered indoor and outdoor setups — not automated systems
- Growers working with vegetables, fruits, flowering ornamentals, and similar crops
- Budget-conscious organic growers who don't want premium pricing for premium results
Best suited to spaces where soil biology and genuine organic practice matter as much as the nutrient itself.
Our take
This is proper organic bloom nutrition that delivers. The fact that growers have been using it for over a decade tells you everything — if it didn't work, they'd have moved on. It won't burn your plants, it actually improves your soil structure over time, and the results taste noticeably better than synthetic alternatives.
If you're running organic soil and want a bloom feed you can trust, worth picking up while stock lasts. Does exactly what organic nutrients should do, day in, day out.
