Sources and photo credits
Perennial Bed Planner (beta) · Zone 6B · Southern Michigan
The planner's own text, plant notes, research and code are © 2026 spreck79 and shared under Creative Commons Attribution-NonCommercial 4.0 (CC BY-NC 4.0): you may share and adapt them for non-commercial use with credit. Photos keep their own licenses, listed below. The PDF library jsPDF is MIT licensed and the DejaVu fonts have their own free license.
Photos
Every plant photo comes from Wikimedia Commons. Each one is shown under its own license, listed below with the photographer and a link to the original file page. The photos are cropped to a 4:3 shape and shrunk to fit this planner; nothing else was changed.
Page background: the photos of the flowering plants below, blended together in different sizes and softly blurred. Each one keeps the credit and license listed in the table.
| Plant | Photographer | License | Original photo |
|---|
Pet and people safety information
The toxic tags in this planner come from these lists. Check the original list before you buy, because plants and advice change and some plants have look-alikes.
- ASPCA Toxic and Non-Toxic Plant List (dogs, cats and horses)
- Pet Poison Helpline
| Toxic plant | Toxic to | Where this comes from |
|---|
A plant not marked toxic here is believed to be safe, but it has not been checked against every list. This planner is not veterinary or medical advice. If a pet or person eats part of a plant, call your vet, the ASPCA Animal Poison Control Center at 888-426-4435, or Poison Control at 1-800-222-1222.
Good neighbors (companion plantings)
When you select a plant on the bed plan, the options bar suggests plants that go well with it, and the PDF lists them as "Good neighbors". Every pairing comes from a published source: a university extension garden article, a public garden, or a Michigan grower's companion list. The reason shown in the planner is what that source says.
| Plant | Goes well with (the small numbers are the sources listed below) |
|---|
Michigan native or garden favorite
"Michigan native" means the plant is a true Michigan native. "Garden favorite" (marked ◆) means a plant that Michigan garden centers sell. Each status was checked against the sources below.
| Source | What it shows | Plants checked |
|---|
Deer, early-dormant plants and spring bulbs
The antler icon marks plants deer often or sometimes eat. "Early-dormant" plants die back by early summer, so the bed plan lets them share space with later-growing plants without flagging them as too close.
| Source | Topic | What it shows |
|---|
| Plant | Rutgers deer rating |
|---|
Plant information
Height, spacing, bloom time and light needs are typical ranges drawn from general horticultural references. Real sizes vary with soil, water, sun and climate, so treat the spacing as a guide, not a rule.
Software
- jsPDF, which builds the PDF guide, is open source under the MIT license.
- DejaVu fonts, used in the PDF, are free fonts based on Bitstream Vera.