### Growing Eucalypts from Seed: A Guide
Growing gum trees (Eucalyptus) from seed is a rewarding project, and generally considered to be one of the easier native plants to propagate. Unlike some other seeds, eucalypt seeds usually don't require any pre-treatment like soaking or scarification, although some alpine varieties may benefit from cold stratification.
To begin, sow the very fine, dust-like seeds on the surface of a light, well-draining seed-raising mix. A thin layer of sand can be used to lightly cover them, which helps to prevent "damping off" and keeps the seeds from being exposed to light, which some species need to germinate. The key is to keep the soil consistently moist but not waterlogged.
 
Maintain a soil temperature between 18-21°C (64-70°F) for most species. Patience is key, as sprouting can take anywhere from one to four weeks. Once the seedlings have their first set of true leaves and are large enough to handle, you can transplant them into individual pots. Provide them with plenty of sunlight and gradually introduce them to outdoor conditions before planting them in their permanent location.
 
Swamp Gum (Eucalyptus ovata) - 100 Seeds for a Hardy and Adaptable Eucalypt
 
Introduce a robust and attractive native tree to your landscape with the Swamp Gum, Eucalyptus ovata. This versatile eucalypt is known for its smooth, sometimes mottled bark that sheds in ribbons, and its glossy, lance-shaped leaves. In autumn to spring, it produces clusters of creamy white flowers, providing a valuable food source for local wildlife, including nectar-feeding birds. Despite its common name, it's remarkably adaptable, thriving in a range of conditions from periodically wet to drier sites once established.
 
 
Cultivating Swamp Gum from seed allows you to grow a beautiful, resilient tree that adds natural character and ecological benefits to your outdoor space.
 
 
Growing Instructions:
1. Seed Preparation (Optional but Recommended):
Eucalyptus seeds often benefit from a brief pre-treatment to enhance germination.
You can soak the seeds in warm (not hot) water for 24 hours just before planting. This can help soften the seed coat and encourage more uniform germination. Discard any floating seeds, as they may not be viable.
2. Sowing the Seeds:
Prepare shallow trays or pots with a well-draining seed-raising mix. A mix specifically designed for native plants or a general seed-raising mix with added perlite or sand for drainage is suitable.
Lightly moisten the soil. Scatter the tiny seeds evenly on the surface. Do not cover the seeds too deeply; a very thin layer (no more than 1-2 mm) of fine sand or sieved seed-raising mix is sufficient. Eucalyptus seeds often require light to germinate effectively.
 
3. Germination Environment:
Place the containers in a warm, bright location that receives good indirect sunlight. Avoid intense, direct midday sun, which can dry out the delicate seeds. Optimal germination temperatures are consistently between 18-28°C (64-82°F).
Maintain consistent moisture in the soil. The surface should always appear damp, but avoid waterlogging. Use a fine misting bottle for gentle watering to prevent disturbing the seeds. Covering the tray with a clear dome or plastic wrap can help maintain humidity, but ensure good ventilation to prevent fungal issues. Germination typically occurs within 2-6 weeks.
4. Care of Seedlings:
Once seedlings emerge, ensure they receive ample bright light. If seedlings appear leggy, they may need more light.
Continue to keep the soil consistently moist. As seedlings grow larger and develop true leaves, gradually reduce watering frequency, allowing the top layer of soil to dry slightly between waterings. This encourages a stronger root system. Ensure good air circulation around the seedlings.
5. Transplanting:
When seedlings have developed a few sets of true leaves and are large enough to handle (typically 5-10 cm tall), carefully transplant them into individual pots (e.g., 7-10 cm diameter). Use a well-draining general-purpose potting mix or a native plant potting mix.
Handle the seedlings by their leaves or root ball, avoiding crushing the delicate stem. Water lightly after transplanting.
6. Hardening Off and Permanent Location:
Before planting outdoors permanently, gradually harden off your young trees over a period of 1-2 weeks. This involves slowly exposing them to outdoor conditions, starting in a shaded, protected area and incrementally increasing their exposure to direct sunlight and wind.
Choose a sunny location with well-drained soil. While tolerant of periodically moist areas (hence "Swamp Gum"), Eucalyptus ovata thrives in a range of soil types and prefers good drainage. It is adaptable to various conditions once established.
 
 
Planting in early spring or autumn is generally ideal, allowing the trees to establish well. Mulch around the base of the young trees with an appropriate organic mulch (such as wood chips) to conserve moisture, suppress weeds, and regulate soil temperature. Ensure adequate watering during dry periods, especially in the first year after planting.
 
 
With its hardy nature and attractive form, the Swamp Gum will grow into a valuable and distinctive feature in your garden, offering beauty and support for local wildlife.