Parrot Lily

Common Names: Parrot Lily, Peruvian Lily
Latin Name: Alstroemeria psittacina

Super invasive and spreads like a motherfucker and mess up the other plants. We need to keep this one in check.
Alstroemerias should be left undisturbed for as long as possible before digging and dividing them because they will take 2 or 3 seasons to re-establish themselves after transplanting. They should only be divided in early spring.
Deadheading/Pruning can preferably be done by just pulling the flower stalks up out of the ground. Details below. An interesting effect of the hand pulling method is that it also essentially divides the plant so you won’t have to dig it up.

Although they can survive drought by going dormant, parrotlilies need very moist, but well aerated soil, to grow well. They will tolerate some flooding, but the rhizomes tend to rot if the soil is too heavy and/or remains wet for too long.

Fertilize regularly with a complete nitrogen-heavy supplement
Top-dress with well rotted manure or compost as soon as new growth begins each spring.
Feed every 2-3 weeks when in bloom, using a ½ strength solution of a soluble, bloom type fertilizer.

Cutting Alstroemeria flowers will slow the growth of the plant. The proper method of harvesting Peruvian Lily flowers is to grasp the stem a few inches from the ground and twist it as you pull it upward. This will detach the flower cleanly from the rhizome and promote heavier flower production.
Remove stems up after flowering, leaving tubers in ground.
Ideally, a bit of root should come attached with the stem. Be careful not to pull out the rhizomes. If you are shy about deadheading Alstroemeria by pulling the stem, you can also cut the dead stalk back to the base of the plant.

Kiril's Garden