Make certain that the soil is adequately aerated. The leaves of poorly hydrated plants turn brown, and the plant as a whole becomes bland. Conscious watering can bring such plants back to life. Be sure not to overwater, though; some minor wetting of the soil is normal for Senettis, but they should not be allowed to stand in water.
To revive a dead Senetti plant, first check to make sure that it is not damaged by pests or disease. Plants that are damaged will never recover. If the cause of the death was natural, like with most houseplants, there is no need to worry. If the plant was lost due to accident or someone's carelessness, then take immediate action to correct the situation.
Revive your Senetti by transferring it from its current environment to a new one. This process called "replanting" is necessary every time you move the plant or when the original planting site needs revitalizing. Repotting into larger pots is also an option if the plant gets too big for its pot. However, this should only be done as needed, as putting stress on the plant will cause it to decline in health.
After replanting, provide all newly added plants with high levels of nutrients immediately after transplanting.
First, remove any dead or dried leaves or blooms. If the soil is dry, saturate it with water and make sure any excess water can drain away from the plant. Monitor the plant; give it water when the soil begins to dry out. In a week or so, you should see the signs of new growth. New green leaves will appear above and below the dead one. This is called "green-up". Continue to water regularly until the new growth appears strong enough to handle the stress of hot, dry conditions.
If you have spotted the lily before it died, that is already good news! Spotted lilies like well-drained soil with some compost in it, but they don't like overly rich soil. Avoid putting your spotted lilies in full sun for too long during the summer months. Too much heat can cause the spots to burn off the lily.
Spotted lilies are very sensitive to cold temperatures. If the ground around them freezes, the lilies will die. Clear a space in your garden for planting next year's lilies now, even if they won't bloom for another three years.
Lilies are heavy feeders. When they come up out of the ground each spring, provide them with an inch of water per week during the first month or two after emergence.
Techniques for Restoring Wilting Plants
If many roots were injured, you should cut the plant's leaves back so the roots have less to support. Keep the compost away from direct sunshine, water softly when it dries up, and watch for indications of new growth. Plants that are underwatered seem shriveled and may shed leaves. The compost will be dry and crumbly. The soil should be moist but not wet.
Save the plants by cutting them at the damaged root area. Dispose of contaminated soil and wood carefully so as not to spread disease. Do not throw vegetable scraps away; add them to a compost pile instead.
After cutting the plant, try to ensure that no more than six feet of the stem is exposed. This will allow for bulk transport of air into the plant's tissues and help it recover faster. Also, keep an eye on any weeding over time to make sure that none of the roots are being disturbed.
Plants need oxygen to survive. If you cut off their access to light, they will eventually die. Make sure that the plant is stable before you do this though; if it isn't, use supports to prevent it from falling over.
You can give your plant new roots by planting its seeds in another container with slightly different soil conditions. This will encourage the seedlings to grow strong roots that can reach down into healthier soil.
Some plants are easier to save than others.