Camellias are renowned for their exquisite, waxy blooms and glossy evergreen foliage, bringing a touch of elegance and vibrant color to the garden, particularly during the cooler months when few other plants are in flower. While propagation via cuttings or purchasing established plants is common, growing camellias from seed offers a unique and rewarding experience. It’s a journey of patience, as these slow-growing beauties can take several years to reach flowering maturity. However, the reward of seeing a new, potentially unique camellia cultivar emerge from a tiny seed is unparalleled.
Growing camellias from seed is also an excellent way to cultivate a large number of plants, perhaps for a hedge or a collection, or to simply engage in the fascinating process of plant propagation. This guide will walk you through the steps involved in successfully germinating camellia seeds and nurturing them into healthy, mature plants, preparing you for a future filled with their captivating blooms.
Where Can You Get Camellia Seeds?
Acquiring viable camellia seeds is the crucial first step.
- From Your Own Camellia Plants:
- If you have existing camellia plants that set seed, this is the most reliable source, as you know the parentage (at least one side) and the seeds are fresh.
- Camellia seed pods typically form after flowering and mature in late summer to early autumn. They look like woody, rounded capsules, usually turning brown and splitting open when ripe to reveal 1 to 5 dark brown, pea-sized or slightly larger seeds.
- Harvest the pods just as they begin to split open but before the seeds drop out.
- Extract the seeds immediately, as they have a very short viability window once exposed to air. Plant them as soon as possible after harvesting.
- From Other Gardeners or Friends:
- If you know someone with camellia plants, ask if you can collect some fresh seeds when they ripen.
- From Reputable Seed Suppliers:
- Some specialized seed companies, particularly those focused on camellias or rare plants, offer camellia seeds.
- This is a good option if you don’t have access to mature plants, but verify the supplier’s reputation for fresh, viable seeds. Note that seeds from specific named cultivars may not produce “true to type” plants; the offspring may vary due to cross-pollination.
- Online Forums/Groups:
- Dedicated camellia societies or gardening forums may have members who share or sell seeds.
Growing Camellias From Seeds Steps
Patience is a virtue when growing camellias from seed, as germination can be slow and sporadic.
1. Seed Collection and Preparation: * Freshness is Key: Camellia seeds are “recalcitrant,” meaning they do not tolerate drying out and cannot be stored for long periods. Plant them immediately after collection. * Clean the Seeds: Remove any remaining husk or pulp from the seeds. Gently rinse them. * Float Test (Optional): Place seeds in a bowl of water. Discard any that float, as they are likely not viable. * Scarification (Optional but Recommended): Camellia seeds have a hard outer coat that can inhibit germination. Lightly scarifying them can help. * Gently rub each seed with fine-grit sandpaper, nick the seed coat with a file, or carefully make a small cut with a sharp knife (away from the embryo). Be careful not to damage the inner embryo. * Soaking (Optional): After scarification, soak seeds in lukewarm water for 12-24 hours to further soften the seed coat.
2. Planting Medium and Containers: * Medium: Use a well-draining, sterile seed-starting mix. A good mix would be equal parts peat moss (or coco coir), perlite, and coarse sand. This provides good aeration and drainage while retaining some moisture. Avoid heavy garden soil. * Containers: Use individual small pots (7-10 cm / 3-4 inches in diameter) or deep seed trays with excellent drainage holes. Camellias develop a taproot, so depth is beneficial.
3. Sowing the Seeds: * Timing: Plant fresh seeds in late summer/early autumn or stratify them and plant in early spring. * Depth: Plant each seed $2.5-5$ cm ($1-2$ inches) deep. * Spacing: If using trays, space seeds about 5-7.5 cm (2-3 inches) apart. * Covering: Lightly cover the seeds with your potting mix. * Watering: Water thoroughly until the mix is evenly moist, but not soggy. Bottom watering (placing the tray in a shallow pan of water) works well to avoid disturbing seeds.
4. Germination Conditions: * Warmth: Camellia seeds generally need warmth to germinate. Maintain a consistent soil temperature of $20^\circ C$ to $25^\circ C$ ($68^\circ F$ to $77^\circ F$). A heating mat can be very helpful. * Humidity: Cover the pots or trays with a clear plastic dome or plastic wrap to maintain high humidity. Ensure some ventilation to prevent mold. * Light: Light is not necessary for germination, but once seedlings emerge, they will need bright, indirect light. * Patience: Germination can be slow and erratic, ranging from 1 month to 1 year, depending on the species, seed freshness, and conditions. Don’t give up too soon!
5. Care After Germination: * Light: Once seedlings emerge, move them to a location with bright, indirect light. Direct, harsh sunlight can scorch young seedlings. Grow lights are ideal. * Watering: Keep the soil consistently moist but never waterlogged. Water from the bottom or use a gentle spray to avoid disturbing delicate seedlings. * Air Circulation: Ensure good air circulation to prevent damping-off disease. Remove the plastic dome for a few hours each day, or use a small fan. * Humidity: Maintain relatively high humidity initially, gradually reducing it as seedlings mature. * Feeding: Once seedlings have developed 2-3 sets of true leaves, you can begin feeding them with a very dilute liquid fertilizer (e.g., quarter strength) formulated for acid-loving plants.
6. Transplanting Seedlings: * Timing: When seedlings are large enough to handle, typically 7-10 cm (3-4 inches) tall with a good root system, transplant them into individual larger pots (e.g., 10-15 cm / 4-6 inch diameter). * Potting Mix: Use a slightly coarser, well-draining potting mix for acid-loving plants. * Gentle Handling: Camellia roots are somewhat delicate. Handle seedlings by their leaves or root ball, never the stem. * Depth: Plant at the same depth as they were in the seed tray.
How Often To Water Camellias
Camellias, whether from seed or mature plants, have specific watering needs.
- Consistent Moisture: They prefer consistently moist, but not soggy, soil.
- Establishment: Young seedlings and newly transplanted camellias need more frequent watering to help establish their root systems. The soil should never dry out completely.
- Mature Plants: Once established, mature camellias are more tolerant but still perform best with regular watering, especially during dry spells or during bud development and flowering.
- Watering Technique: Water deeply at the base of the plant. Overhead watering can encourage fungal diseases.
- Check Soil Moisture: Always check the top few inches of soil before watering. If it feels dry, it’s time to water. Reduce watering in winter when the plant is less active.
- Drainage is Crucial: Good drainage is paramount. Camellias are highly susceptible to root rot in waterlogged conditions.
Do Camellias Live in All Climates?
No, camellias do not thrive in all climates. They have specific climatic requirements.
- Temperature:
- Ideal Zones: Most camellias (especially Camellia japonica) prefer USDA Hardiness Zones 7-9, though some species and cultivars are hardy to Zone 6 (C. oleifera, C. sasanqua, and some hybrids).
- Cool Summers: They generally prefer areas with mild to cool summers and moderate winters. Extreme heat can stress them.
- Winter Chilling: They need a period of winter chill to properly set flower buds.
- Frost Protection: While hardy to certain low temperatures, severe, prolonged freezes or late spring frosts can damage buds and new growth.
- Humidity: They prefer moderate to high humidity.
- Light: They thrive in partial shade, particularly protection from intense afternoon sun. Full sun can cause leaf scorch, especially in hot climates. Too much shade can reduce flowering.
- Soil: They are acid-loving plants, preferring a soil pH between $5.5$ and $6.5$. Alkaline soils will lead to chlorosis (yellowing leaves due to nutrient deficiencies like iron).
In Kenya: Camellias would likely thrive in the cooler, high-altitude regions that receive good rainfall and experience cooler temperatures, such as parts of the Aberdares, Mount Kenya slopes, or areas around Limuru and Tigoni. The consistent warmth and high humidity in coastal or very low-lying areas might be too intense for many varieties. They would require careful siting to ensure partial shade and well-drained, acidic soil.
Final Thoughts
Growing camellias from seed is a rewarding endeavor for the patient gardener. While the wait for those first exquisite blooms can be several years, the process itself is a testament to the wonders of nature and your dedication. By carefully selecting fresh seeds, providing optimal germination conditions, and nurturing your young seedlings with consistent moisture and the right light, you embark on a unique journey that culminates in the timeless elegance of camellia blossoms. This method not only offers the satisfaction of growing a plant from scratch but also the potential to discover a truly unique camellia perfectly suited to your garden.