ULTRA · Flower enhancer
Own the flip.
The flip is a big change for the plant. ULTRA is an Ascophyllum + alfalfa + humic + B1 feed — 1 ml/L, every feed, through the transition from veg into flower.
Australian-made · 26 years in the US · N-P-K 0.0331–0–0.2289
Why it matters
The flip is a big change.
ULTRA runs the first two weeks of flower to support plant health and nutrient uptake through it.
Early flower
1 ml/L, every feed, weeks 1–2 of flower.
Well fed through the flip
Kelp and alfalfa alongside your base feed for the first two weeks.
Alongside your base
Ascophyllum, alfalfa, humic and B1 on top of the feed you already run.
What’s in the bottle
Kelp and alfalfa. Into flower.
Here’s what’s actually in it — read straight off the current bottle — and what each part does in the first fortnight of bloom.
Ascophyllum nodosum North Atlantic kelp
A cold-water brown kelp carrying mannitol and trace minerals. It’s there to support plant health and nutrient uptake through the transition, when the plant is under the most stress.
mannitolkelp extracttrace minerals
Medicago sativa Alfalfa (lucerne)
Alfalfa extract, alongside the kelp, supporting nutrient uptake and plant health through the transition.
alfalfa extractplant health
Humic acid + B1 Leonardite humic · thiamine
Humic acid keeps minerals available so the plant takes them up efficiently right through the flip, with a touch of vitamin B1 alongside.
humic acidvitamin B1
What growers are seeing
Believers by week two.
“Ultra really made me a believer this round — bud sites were prominent early on.”
@stillstanding_10
Verified grower review · shared via Instagram
“Ultra weeks 1–2, then Phat — finishing early with major bulk.”
@greendiamondgarden_est2015
“Everything was happy and lush through stretch on Roots, Sea Minerals, SWTNR and Ultra.”
@squidward_organics
“Easy to use, great results — my favourite trio.”
@therealbestbudz
Why growers switch
Coast the flip vs. feed it.
Flip and hope
✗
Base feed only through the transition.
✗
Without support, a stressed plant can struggle through the transition.
✗
Nothing extra for the first two weeks.
✗
No kelp or alfalfa in the mix.
Flip with ULTRA
✓
Kelp, alfalfa, humic and B1 at 1 ml/L, weekly.
✓
Plant health and nutrient uptake supported through the flip.
✓
Fed right through the transition into flower.
✓
Start flower well fed.
A little goes a long way
1 L → 1,000 L
of finished feed at 1 ml/L. Weeks 1–2 of flower — from one concentrated bottle.
Proof — label & MSDS
Straight off the label.
N – P – K
0.0331 · 0 · 0.2289
Type
Flower enhancer
Dose
1 ml/L
Made in
Australia
Ascophyllum + alfalfa + humic acid + B1
100% biodegradable
pH 8–10
By Agricultural Organics, South Australia
N-P-K from the product label. Composition and properties from the manufacturer MSDS.
When to use it
The first two weeks.
Veg
Flip wk 1–2
Mid flower
Late flower
Harvest
Weeks 1–2 of flower, weekly1 ml/L
Soil / coco / hydroany medium
Hand into PHAT for mid-flower bulkthen taper
Start flower
well fed.
Shop ULTRA →
Or DM FEED CHART to @bloom_crew_nate for your full flower schedule.
Images on this page are a mix of real photos and AI-generated illustrations, used to show how things work.