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Outdoor Cannabis Seeds β€” Weather-Tough Genetics for New Zealand Conditions

These strains are handpicked for outdoor resilience across New Zealand's diverse climate zones β€” from the humid, frost-free north of Northland to the short, frost-bounded season of Southland. Outdoor growing harnesses free sunlight and open space to produce the largest individual plants possible, with top genetics yielding well over a kilogram per plant in ideal conditions. Browse our outdoor-optimised collection for weather-resistant, pest-tolerant genetics that finish on schedule in your region.

Also worth a look: fast-flowering strains to finish ahead of an April frost, autoflowers for two crops in one season up north, and high-yield genetics for plants with room to spread.

603 strains available

Per-Plant Yield250–1000+ g
Harvest WindowMar–May (Aus)
Light SourceNatural Sunlight
Ideal ForLarge Plants & Open Space

Best Strains For Outdoor Growing catalogue at a glance

Our best strains for outdoor growing collection currently holds 603 strains in active inventory with verified THC content ranging from 1% at the low end to 33% at the high end (median 21%).

Strains
603
THC range
1-33%
Median THC
21%
Auto / Photo
0/602
  • Feminised photoperiod: 602 strains (100% of the catalogue) β€” single-flip genetics with the largest single-plant yields.
  • Sativa-dominant: 186 β€” cerebral effects, taller plants, Limonene-Pinene-Terpinolene profiles common.
  • Balanced hybrid: 417 β€” mixed indica/sativa lineage, ranges from 60/40 to 50/50 splits depending on phenotype.
  • Alphabetical lineup starts with: $100 OG, 13 Dawgs, 24k Gold β€” see the full grid below for filters and grow specifications.

Best Strains For Outdoor Growing β€” Browse All Strains

Qualities of a Reliable Outdoor Strain

Outdoor genetics need to handle what nature delivers: wind, rain, temperature swings, pests, and mould pressure. The best outdoor strains carry natural resistance to botrytis and powdery mildew, tolerate temperature variation without stalling, and finish flowering within your local season window. In New Zealand, the primary outdoor growing calendar runs from October through April β€” spring through autumn in the Southern Hemisphere. Long-flowering sativas only make sense in the warm north, where the season runs longest. Everywhere south of about Taranaki, and especially in Otago and Southland, fast-finishing indicas and autoflowers are the reliable option.

Outdoor Strains Matched to New Zealand Regions

Northland, Auckland and the Bay of Plenty give the longest, warmest season, so tall sativas such as Jack Herer and Sour Diesel can finish β€” but humidity through February and March makes open bud structure and mould resistance non-negotiable. Waikato, Taranaki and ManawatΕ« are wetter and cooler; Northern Lights, White Widow and mould-tolerant hybrids are the safer bet. Hawke's Bay and Gisborne are the driest and sunniest growing country in the North Island, where almost anything performs given water. Nelson, Tasman and Marlborough offer the best outdoor conditions in the country β€” high sunshine, low summer rain. One range west, the West Coast is the wettest place in New Zealand and effectively demands covered growing. Canterbury, Otago and Southland run a genuinely short season where the first frost ends the argument, so autoflowers and fast indicas such as Critical Mass are the reliable choices.

Picking Outdoor Seeds for Your New Zealand Postcode

Season length is the primary filter. Count the warm weeks available between your last spring frost and first autumn chill β€” that is your outdoor window. Photoperiod strains must complete flowering within that window, so check listed bloom durations carefully. Autoflowers only need ten to twelve weeks regardless, making them viable almost everywhere. Factor in local humidity: wet autumn conditions demand mould-resistant genetics or early-finishing strains. Shorter, bushier plants attract less attention than towering sativas β€” a practical consideration for discreet outdoor cultivation.

Why Grow Outdoors

Sunlight is the most powerful and spectrally complete light source on the planet β€” no artificial fixture fully replicates it. Outdoor plants can grow to massive proportions and yield accordingly. There is no electricity bill, and natural air movement keeps plants healthy without fans. The trade-offs: a single annual harvest window (unless using autoflowers), exposure to weather and pests, and less environmental control than an indoor setup. Many serious growers maintain both indoor and outdoor operations to capture the strengths of each.

Outdoor Growing Tips for the New Zealand Climate

Start seeds indoors under a grow light in September and harden off seedlings before transplanting outdoors in October, once frost risk has passed. Position plants in a north-facing spot for maximum solar exposure (north-facing receives the most light in the Southern Hemisphere). Prepare the ground with compost, worm castings, and amendments ahead of planting. Fabric pots or raised beds improve root aeration and drainage. Protect young transplants from possums, rabbits, and slugs. Monitor for mould from late February onward as humidity tends to rise. Harvest when trichomes are cloudy β€” do not delay if rain is approaching. Our regional outdoor guides detail the specifics for each state.

Frequently Asked Questions

When is the right time to plant cannabis outdoors in New Zealand?
Start seeds indoors during September. Transplant outdoors after the last frost date, which falls in October across most of the country. Autoflowers can be planted later in the season and still finish in time. Harvest typically runs from March through May depending on strain and latitude.
Which outdoor strain performs best in New Zealand overall?
Blue Dream, Northern Lights, and Sour Diesel are consistently top-rated outdoor performers. Blue Dream offers balanced effects and natural mould resistance. Northern Lights finishes early for southern growers. Sour Diesel excels in warm climates with massive outdoor yields.
How much does an outdoor plant produce?
Outdoor harvest weight ranges widely: 250 grams to over a kilogram per plant depending on strain, climate, soil, and technique. In the best New Zealand conditions β€” a sheltered Northland or Nelson site with a full season and good soil β€” experienced growers report over 800 grams per plant from yield-bred genetics.
Can I grow outdoors in cooler states like Southland or Otago?
Yes β€” choose fast-finishing strains or autoflowers. Northern Lights, Critical Mass, and auto varieties complete their cycle before autumn cold sets in. Starting seeds indoors and transplanting after frost extends the effective growing window.
How do I prevent mould on outdoor plants?
Start with mould-resistant genetics. Space plants well for airflow. Shake water off buds after rain. In humid climates, favour strains with open bud structures over dense indica types. Harvest promptly if conditions deteriorate rather than risking the crop.
How much water do outdoor plants need in New Zealand?
During peak summer heat, outdoor plants in the ground need 4–12 litres per day depending on size and soil type. Container plants require even more frequent watering. Mulching the soil surface conserves moisture significantly. Water early morning or late evening to minimise evaporation losses.

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