The Complete Plant Guide for Northland & Far North Gardens
Climate Zone 9-10: Subtropical Paradise
Northland's subtropical climate offers New Zealand's longest growing season and the opportunity to grow the widest range of plants in the country. From Kaitaia to Whangarei, gardeners can embrace both exotic and native species that simply won't survive further south.
Understanding Your Northland Climate
Key Characteristics:
Mild winters (rarely below 5°C)
Warm, humid summers (25-28°C)
High rainfall (1000-1600mm annually)
Sea breezes moderate extreme temperatures
Salt-tolerant plants essential near coast
Extended growing season (year-round for many crops)
Unique Challenges:
High humidity can encourage fungal diseases
Strong coastal winds require windbreak planning
Summer drought periods despite high annual rainfall
Salt spray affects coastal properties
Native Plants for Northland Gardens
Canopy Trees (Large Specimens)
Puriri (Vitex lucens)
Stunning pink flowers attract tui and bellbirds
Slow-growing but extremely long-lived
Ideal for large properties and wildlife gardens
Best in sheltered positions when young
Pohutukawa (Metrosideros excelsa)
New Zealand's Christmas tree with iconic red flowers
Excellent salt tolerance for coastal gardens
Provides substantial shade and windbreak
Plant as feature tree or screening
Kauri (Agathis australis)
Majestic native conifer for spacious gardens
Extremely slow-growing but magnificent when mature
Requires excellent drainage and protection when young
Cultural significance and conservation value
Taraire (Beilschmiedia tarairi)
Dense evergreen canopy tree
Purple berries attract native birds
Excellent for forest garden understory
Prefers sheltered, moist conditions
Medium Trees & Large Shrubs
Nikau Palm (Rhopalostylis sapida)
New Zealand's only native palm
Creates tropical atmosphere in sheltered gardens
Slow-growing but worth the wait
Needs protection from strong winds
Karaka (Corynocarpus laevigatus)
Glossy evergreen foliage
Orange berries (toxic to humans, food for birds)
Excellent coastal tolerance
Good screening and shelter tree
Rewarewa (Knightia excelsa)
Honeysuckle-scented flowers
Attracts native birds and beneficial insects
Beautiful autumn color in cooler spots
Good for mixed native hedging
Lacebark (Hoheria populnea)
Masses of white flowers in late summer
Fast-growing and relatively short-lived
Excellent pioneer species for new gardens
Self-seeds readily in suitable conditions
Shrubs & Small Trees
Manuka (Leptospermum scoparium)
Essential for wildlife and honey production
White or pink flowers depending on variety
Extremely hardy and drought-tolerant once established
Ideal for difficult sites and erosion control
Kanuka (Kunzea ericoides)
Fast-growing pioneer shrub
Excellent for establishing shelter quickly
White bottlebrush flowers attract beneficial insects
Good nurse plant for slower-growing species
Kawakawa (Piper excelsum)
Heart-shaped leaves with traditional medicinal uses
Orange berries attract native birds
Tolerates shade and challenging conditions
Important culturally and ecologically
Coprosma Species
Mirror plant (C. repens) excellent for coastal hedging
Karamu (C. robusta) provides bird food and shelter
Various sizes from groundcovers to small trees
Many species have colorful berries
Coastal Specialists
Pingao (Ficinia spiralis)
Golden-colored native sedge
Essential for dune stabilization
Excellent architectural plant for coastal gardens
Requires well-drained sandy soil
Spinifex (Spinifex sericeus)
Silvery grass that binds coastal sands
Forms attractive tussocks and spreading mats
Critical for coastal erosion control
Tolerates salt spray and sandy soils
Taupata (Coprosma repens)
Glossy-leaved coastal shrub
Excellent for windbreaks and hedging
Tolerates extreme coastal conditions
Fast-growing and easily shaped
Pohuehue (Muehlenbeckia complexa)
Native wire vine with tiny leaves
Excellent groundcover or climbing plant
Tolerates coastal conditions and poor soils
Provides nesting sites for small birds
Exotic Plants That Thrive in Northland
Tropical & Subtropical Trees
Avocado (Persea americana)
Multiple varieties suit Northland's climate
Hass, Reed, and Fuerte perform well
Requires wind protection and good drainage
Plant multiple varieties for better fruit set
Feijoa (Acca sellowiana)
Aromatic fruit and edible flowers
Extremely hardy once established
Good hedge plant with attractive silver foliage
Self-fertile varieties available
Macadamia Nuts
Growing commercial crop in Northland
Long-term investment with excellent returns
Requires patience (7-10 years to full production)
Choose grafted varieties for reliable crops
Citrus Trees
Lemons, limes, oranges, and mandarins all thrive
Protect from wind and provide good drainage
Meyer lemons particularly successful
Consider dwarf varieties for smaller gardens
Flowering Trees & Shrubs
Frangipani (Plumeria species)
Iconic tropical fragrance and flowers
Deciduous in cooler winters
Multiple flower colors available
Excellent in pots for mobility
Hibiscus (Hibiscus rosa-sinensis)
Year-round flowering in frost-free areas
Hundreds of varieties and colors
Good hedge or specimen plant
Regular feeding promotes continuous blooming
Bougainvillea
Spectacular color display for most of the year
Excellent for covering fences and structures
Thorny stems provide security barrier
Drought-tolerant once established
Oleander (Nerium oleander)
Extremely hardy flowering shrub
Blooms continuously in warm weather
Excellent windbreak and screening plant
All parts toxic - keep away from children and pets
Palms & Architectural Plants
Phoenix Palms
Canary Island Date Palm creates an instant tropical feel
Mediterranean fan palms suit smaller spaces
All provide excellent architectural structure
Wind-resistant once established
Cordyline australis (Cabbage Tree)
Native New Zealand but performs exceptionally in Northland
Varieties with colored leaves available
Excellent structural plant
Very drought tolerant
Cycads
Ancient plants that thrive in Northland's climate
Extremely slow-growing but long-lived
Various sizes from small to tree-sized
Excellent specimen plants for subtropical gardens
Vegetable Gardening in Northland
Year-Round Growing Opportunities
Summer Vegetables (Oct-Mar):
Tomatoes (all varieties thrive)
Capsicums and chilli peppers
Eggplant and okra
Tropical fruits like passionfruit
Winter Vegetables (Apr-Sep):
Brassicas (broccoli, cauliflower, cabbage)
Asian greens (bok choy, mizuna, tatsoi)
Root vegetables (carrots, parsnips, beetroot)
Herbs (parsley, coriander, mint)
Tropical Possibilities:
Dragonfruit (with support structures)
Bananas in sheltered positions
Sweet potato as perennial crop
Lemongrass and galangal
Market Garden Crops
Kumara (Sweet Potato)
Traditional Maori crop that originated in Northland
Plant tubers in spring after soil warms
Harvest in autumn before first frost
Store properly for winter eating
Tropical Root Vegetables
Taro and yacon perform well
Require consistent moisture during growing season
Harvest carefully to avoid damage
Traditional and modern varieties available
Garden Design Considerations for Northland
Shelter and Windbreaks
Essential Elements:
Coastal winds can be destructive - plan windbreaks first
Use fast-growing natives like kanuka for quick shelter
Create multiple shelter layers for best protection
Consider salt tolerance for coastal properties
Recommended Windbreak Plants:
Griselinia littoralis (fast-growing, dense)
Metrosideros species (excellent coastal tolerance)
Coprosma robusta (quick establishment, bird food)
Olearia species (salt-tolerant, flowering)
Water Management
Drought Preparation:
Despite high rainfall, summer droughts are common
Install water storage systems during winter
Choose drought-tolerant plants for low-maintenance areas
Group plants with similar water needs
Drainage Solutions:
Clay soils common in many areas require improvement
Add organic matter and coarse materials
Consider raised beds for vegetables
Plant appropriate species for wet areas
Pest and Disease Management
Common Issues:
High humidity encourages fungal diseases
Good air circulation essential in plant placement
Choose disease-resistant varieties when possible
Integrated pest management works best
Beneficial Plantings:
Native plants attract beneficial insects
Companion planting reduces pest pressure
Aromatic herbs deter many garden pests
Encourage bird habitat for natural pest control
Seasonal Planting Schedule for Northland
Spring (August - November)
August: Start summer crops indoors, plant cool-season vegetables
September: Main planting of summer vegetables and annual flowers
October: Plant heat-loving crops, establish new lawns
November: Last chance for summer crops, plant tropical species
Summer (December - March)
December: Successive plantings of quick crops, establish irrigation
January: Harvest and preserve, plant autumn crops
February: Continue autumn planting, prepare for cooler weather
March: Plant brassicas and winter vegetables
Autumn (April - June)
April: Major planting period for trees and shrubs
May: Plant garlic, winter herbs, and cool-season crops
June: Continue winter planting, prepare summer garden areas
Winter (July - August)
July: Limited planting, focus on planning and soil improvement
August: Begin spring preparations, start seeds indoors
Maintenance Tips for Northland Gardens
Pruning and Trimming
Prune tropical plants after flowering
Shape hedges regularly for dense growth
Remove storm-damaged branches promptly
Winter pruning for deciduous trees
Fertilising Schedule
Organic matter addition year-round
Citrus feeding every 6-8 weeks during growing season
Native plants typically need minimal feeding
Compost application in spring and autumn
Weed Management
Aggressive weeds thrive in Northland's climate
Mulching essential for weed suppression
Hand weeding most effective for established gardens
Preventive measures better than reactive control
Creating Your Northland Garden Paradise
Northland's unique climate allows gardeners to create truly spectacular gardens that blend native New Zealand species with carefully chosen exotics. The key to success lies in understanding your specific microclimate, planning for wind protection, and choosing plants that will thrive rather than merely survive.
Start with shelter and infrastructure, then build your garden layer by layer. Native plants provide the backbone for wildlife habitat and low-maintenance beauty, while selected exotics can add tropical flair and extended seasons of interest.
Remember that Northland gardens are investments in both beauty and biodiversity. Every native plant you choose supports local ecosystems, while thoughtful exotic selections can provide food, fragrance, and year-round garden pleasure.
With proper planning and plant selection, your Northland garden can be productive, beautiful, and sustainable for generations to come.