Once income has been verified, use the following to determine qualifying quarters: If the year is: Credit 1 quarter for at least this amount. Credit 2 quarters for at least this amount. Credit 3 quarters for at least this amount. Credit 4 quarters for at least this amount.
Making the world better, one answer at a time. Periwinkles reproduce annually with internal fertilization of egg capsules that are then shed directly into the sea. The female periwinkle lay 10,000 to 100,000 eggs. Periwinkles reproduce annually with internal fertilization of egg capsules that are then shed directly into the sea. The female periwinkle lay 10,000 to 100,000 eggs.
Vinca. Glossy leaves, stellar blue flowers, quick coverage -- periwinkle is an ideal coverage for shade. Its only flaw is that it's so popular it's become underappreciated. Prepare the soil well prior to planting and add humus to retain moisture. Keep the plants cut back to encourage bushy growth, and to keep them within bounds. Periwinkle can become invasive.