A quiet baseline

Notice what stays

Compare visible needles, bare branches and hidden ground without deciding what ought to be there.

Plant evidence: □ not checked □ looked, not seen □ visible feature: ______________
Current conditions remain unknown unless you record an observation. No visit is implied.

Light & shelter

Follow the edge of light

Return to one view. A repeatable viewpoint makes a small change easier to describe.

Plant evidence: □ not checked □ looked, not seen □ visible feature: ______________
Current conditions remain unknown unless you record an observation. No visit is implied.

Change & uncertainty

Hold two possibilities

Longer calculated days and an uncertain view can coexist. Let the evidence set the sentence.

Plant evidence: □ not checked □ looked, not seen □ visible feature: ______________
Current conditions remain unknown unless you record an observation. No visit is implied.

A repeat visit

Look for small changes

Pick a visible feature that you could recognize again: one branch tip, leaf edge or seed head.

Plant evidence: □ not checked □ looked, not seen □ visible feature: ______________
Current conditions remain unknown unless you record an observation. No visit is implied.

Place matters

Read the microhabitat

Two plants on the same day may have different surroundings. Describe those surroundings first.

Plant evidence: □ not checked □ looked, not seen □ visible feature: ______________
Current conditions remain unknown unless you record an observation. No visit is implied.

Duration & experience

Measure a long day

A calculated day length describes a reference horizon. A shaded viewpoint can feel different.

Plant evidence: □ not checked □ looked, not seen □ visible feature: ______________
Current conditions remain unknown unless you record an observation. No visit is implied.

One day, many years

Separate weather from climate

A description of your visit and a historical monthly average answer different questions.

Plant evidence: □ not checked □ looked, not seen □ visible feature: ______________
Current conditions remain unknown unless you record an observation. No visit is implied.

Sequence, not schedule

Revisit a flower

A flower, fruit or dry stem can become a repeatable subject if one is visible. Any outcome is useful.

Plant evidence: □ not checked □ looked, not seen □ visible feature: ______________
Current conditions remain unknown unless you record an observation. No visit is implied.

Evidence before names

Look for late-year evidence

Make a record you can return to in October. There is no required seasonal appearance.

Plant evidence: □ not checked □ looked, not seen □ visible feature: ______________
Current conditions remain unknown unless you record an observation. No visit is implied.

Color & context

Map a patch of color

A small palette can record a view without turning a seasonal pattern into a prediction.

Plant evidence: □ not checked □ looked, not seen □ visible feature: ______________
Current conditions remain unknown unless you record an observation. No visit is implied.

Unknown is useful

Notice what is missing

“Not seen,” “not looked for,” and “not present” are different statements.

Plant evidence: □ not checked □ looked, not seen □ visible feature: ______________
Current conditions remain unknown unless you record an observation. No visit is implied.

A year of looking

Close the circle

Return to one earlier entry. A notebook is a record of visits, including gaps.

Plant evidence: □ not checked □ looked, not seen □ visible feature: ______________
Current conditions remain unknown unless you record an observation. No visit is implied.

Try the comparison

1. Read the complete date and latitude beside each estimate.
2. Subtract the shorter duration from the longer one. The comparison below does this for you.
3. Name two reasons your view could receive less direct sun than this model suggests.

Suggested pages: December and June. If you have no observations, leave those parts unknown; the reference values can still be compared.

Your evidence & uncertainty

Try the comparison

1. Compare the two modeled day lengths, without calling the dates equinoxes.
2. Compare the historical monthly average highs and lows.
3. Explain why a daylight number alone is not a temperature forecast or a bloom calendar.

Suggested pages: March and September. If you have no observations, leave those parts unknown; the reference values can still be compared.

Your evidence & uncertainty

Try the comparison

1. Read January and July’s historical average highs.
2. Write a possible observation sentence with a blank for an actual thermometer reading.
3. Keep that blank unknown if no measurement was made.

Suggested pages: January and July. If you have no observations, leave those parts unknown; the reference values can still be compared.

Your evidence & uncertainty

Try the comparison

1. Use two of your own dated notes or two blank monthly sheets.
2. Check subject, broad habitat, viewpoint and viewing effort before comparing visible stages.
3. List changed conditions separately. If you cannot recognize the subject, keep the comparison uncertain.

Suggested pages: April and May. If you have no observations, leave those parts unknown; the reference values can still be compared.

Your evidence & uncertainty

Try the comparison

1. Compare two of your own notes, if available. Label the illumination in each.
2. Separate the color you saw from the identity you inferred.
3. Compare your wording with the NPS general account of gold autumn aspen leaves.

Suggested pages: September and October. If you have no observations, leave those parts unknown; the reference values can still be compared.

Your evidence & uncertainty

Try the comparison

1. Compare these teaching examples: “I did not look for buds” and “I looked at one visible branch and saw no buds.”
2. Identify what the second sentence adds: subject and viewing effort.
3. Write a third sentence about what neither statement can establish for the whole park.

Suggested pages: November and February. If you have no observations, leave those parts unknown; the reference values can still be compared.

Your evidence & uncertainty