| Hatch |
|
Size |
Approximate
Date |
Time
of Day |
Flower
Blooming |
|
Blue Winged Olive |
16 - 18 |
Mar 15 |
Varies |
First Coltsfoot |
| |
Caddis |
12
- 20 |
Apr
15 |
1:00a
- 2:00p |
Skunk
Cabbage |
|
Blue Quill |
14 - 18 |
Apr 17 |
11:30a - 3:00p |
Trout Lily |
| |
Quill Gordon |
12
- 14 |
Apr
25 |
1:30p |
Blood
Root |
|
Hendrickson (F)
Red Quill (M) |
12 - 14 |
May 1 |
2:00p |
Wild Ginger |
| |
March Brown |
10
- 12 |
May
12 |
10:00a
- noon; dusk |
Red
Bud Tree |
|
Gray Fox (Dun)
Ginger Quill (Sp) |
10 - 12 |
May 12 |
10:00a - noon;
dusk |
Dutchman's Breeches |
| |
Sulphur |
12
- 16 |
May
20 |
7:00p |
Trillium |
|
Green Drake |
8 - 10 |
May 28 |
8:30p |
Lady Slipper |
| |
Light Cahill |
12 |
May
30 |
8:00p |
Iris,
full bloom |
|
Yellow Drake |
10 - 12 |
May 30 |
8:00p |
Goats Beard |
| |
Brown Drake |
10
- 12 |
May
30 |
8:00p |
Peonies,
open |
|
Slate Drake |
10 - 12 |
Jun 1 |
5:00p |
Mountain Laurel |
| |
Blue Winged Olive |
18
- 20 |
Jun
20 |
9:00a |
Chicory,
in bloom |
|
Trico |
20 - 24 |
Jul 15 |
7:00a |
Wild Rhododendron |
| |
White Fly |
10 |
Aug
7 |
7:30p |
Golden
Rod |
| Hatches and flower bloom are predictable. This is the natural order of events
that scientists call Phenology. Hatches usually start within a few days of listed
date in Central Pennsylvania. Most species are available for a few weeks after the initial hatch. |
|