Remove yellowed, brown bulb foliage as soon as it pulls free from soil without resistance. This process may take up to 6 to 8 weeks after flowers fade.
If tulip and hyacinth bulbs performed poorly this year, dig up and discard bulbs. How do you know when bulbs are kaput? They produce few or no flowers and spindly leaves and stalks. You can expect most tulips and hyacinths to last 2 to 3 years with a strong show. These bulbs typically dwindle in growth after that
Test Garden Tip: As this year's spring bulb blooms fade, plan where to plant bulbs in fall to enhance the show. Make a planting diagram or use marker flags to indicate where to add bulbs.