To successfully grow Portuguese squill, also known as Scilla peruviana, there are a few key steps to follow. Whether you choose to plant them in borders or containers, these beautiful bulbs thrive in both sunny and partially shaded areas. Here is a detailed guide on how to grow Portuguese squill:
1. Planting Location: Choose a spot in your garden or a container that receives ample sunlight or partial shade. This will ensure the bulbs have the necessary light to grow and bloom.
2. Bulb Planting Depth: When planting Portuguese squill bulbs, it is important to plant them two to three times as deep as the bulb’s height. This means if the bulb is 1 inch tall, it should be planted 2 to 3 inches deep in the soil or potting mix. This depth provides stability and encourages healthy growth.
3. Bulb Spacing: Give each Portuguese squill bulb enough space to grow and expand. A good rule of thumb is to space the bulbs about twice the bulb diameter apart. For example, if a bulb is 1 inch in diameter, plant it about 2 inches away from other bulbs.
4. Bulb Placement: When planting the Portuguese squill bulbs, make sure to place them with the pointed side facing upwards. This is where the stem and leaves will emerge from, so it needs to be positioned correctly for proper growth.
5. Soil Requirements: Portuguese squill prefers well-draining soil. If your soil tends to be heavy or clay-like, consider adding organic matter such as compost or well-rotted manure to improve drainage. This will prevent waterlogging and help the bulbs establish themselves.
6. Watering: After planting the bulbs, give them a thorough watering to settle the soil and initiate growth. Portuguese squill bulbs do not require excessive watering, but they do appreciate regular moisture during their active growing period. Keep the soil evenly moist, but not overly saturated.
7. Fertilizing: Portuguese squill bulbs generally do not require heavy fertilization. However, you can apply a balanced, slow-release fertilizer or bulb-specific fertilizer in early spring when new growth starts to emerge. Follow the instructions on the fertilizer packaging for the appropriate amount and timing.
8. Maintenance: Portuguese squill is a relatively low-maintenance plant. Remove any weeds that may compete for nutrients and water. Once the flowers fade, allow the foliage to die back naturally. This process allows the bulbs to store energy for the next growing season.
9. Winter Protection: In regions with cold winters, Portuguese squill bulbs may need protection from frost. Apply a layer of mulch over the planting area or move container-grown bulbs to a sheltered location. This will help insulate the bulbs and prevent damage from freezing temperatures.
10. Division: Over time, Portuguese squill bulbs may multiply and become crowded. To maintain healthy growth and flowering, you can divide the bulbs every few years. Dig up the clump of bulbs in late summer or early fall when the foliage has died back. Gently separate the bulbs, ensuring each division has roots and foliage attached. Replant the divisions following the same planting guidelines.
By following these steps, you can successfully grow Portuguese squill in your garden or containers. Enjoy the beautiful blooms and vibrant colors that these bulbs bring to your outdoor space.
