I ordered a plant from a nursery and planted it under the shade of a large bush in a front garden. The first two years it came up, then disappeared. This year I have 2 but haven't gotten any flowers. The plants are about 8 inches tall, which is taller than the past two years. Do they establish themselves for a few years or have I planted them in the wrong place? My gardens are irrigated every morning and have mulch. I hope you can help me, as my mother always had them and they remind me of her.
It may simply be an issue with fertilizer. Have the soil tested and work from there. Here is more information on growing these plants so you can ensure all their needs are being met: https://www.gardeningknowhow.com/ornamental/flowers/dutchmans-breeches/dutchmans-breeches-wildflower.htm
How deep should I plant the Dutchman's breeches seeds?
This is a difficult plant to start from seed.
Seeds must be fresh and need a warm moist period, following by a cool moist period.
Mix seeds with sterile medium and place in a sealed plastic bag in 80 degree location for 60 to 90 days.
Then place in the refrigerator for another 60 to 90 days before sowing.