
Definitions of Crop Start, Cover and Terminate Dates used by AgriMet
ALFALFA PEAK Start Date: Vegetative Growth Begins Cover Date: First Sign of Bloom Terminate Date: First Killing Frost in Fall (< 25 Deg F) ALFALFA MEAN Start Date: Vegetative Growth Begins Cover Date: First Sign of Bloom Terminate Date: First Killing Frost in Fall (< 25 Deg F) APPLES Start Date: Full Bloom Cover Date: Full Canopy Terminate Date: 3-4 Weeks after Harvest ASPARAGUS Start Date: 2 Feet Tall Cover Date: Row Closure Terminate Date: Mid-October BEANS Start Date: 100% Emergence Cover Date: Full Bloom Terminate Date: Vines & Leaves are Dead BEETS Start Date: 100% Emergence Cover Date: Full Canopy Between Rows (In Good Areas Of Field) Terminate Date: Harvest BLUEBERRIES Start Date: 1st Leaf Opens Cover Date: 100% Blue Fruit Terminate Date: Mid-October BLUEGRASS Start Date: Green Up, About 2 Weeks Before Alfalfa Cover Date: Heading Begins Terminate Date: Harvest BLUEGRASS ESTABLISHED Start Date: Green Up, About 2 Weeks Before Alfalfa Cover Date: Heading Begins Terminate Date: Harvest BLUEBERRIES Start Date: 1st Leaf Opens Cover Date: 100% Blue Fruit Terminate Date: Mid-October BROCCOLI Start Date: Cotyledons Unfolding (100% Emergence) Cover Date: Visible Head; Beginning Enlargement Terminate Date: Harvest CABBAGE Start Date: 1st True Leaf (100% Emergence) Cover Date: Biggest Leaves 0-45 Degree Angle to Ground Terminate Date: Harvest CARROT SEED 96 Start Date: 100% Emergence Cover Date: 50% Heading Terminate Date: Harvest CARROT SEED 93 Start Date: 100% Emergence Cover Date: 50% Heading Terminate Date: Harvest CHERRIES - COVER Start Date: Leaf Out (occurs rapidly after bloom) Cover Date: Full Canopy Terminate Date: 3-4 Weeks after Harvest CHERRIES - NO COVER Start Date: Leaf Out (occurs rapidly after bloom) Cover Date: Full Canopy Terminate Date: 3-4 Weeks after Harvest CONCORD GRAPES Start Date: Bud Break Cover Date: Full Canopy Terminate Date: Killing Frost CORN Start Date: 100% Emergence Cover Date: 50% Tasseled Terminate Date: Field Corn (Grain) - Leaves And Stems Are Dead Field Corn (Silage) - Harvest Sweet Corn - Harvest CRANBERRIES Start Date: Break Dormancy Cover Date: Berry Set Terminate Date: End of Harvest (About 11/1) GARLIC Start Date: 100% Emergence Cover Date: 50% of Stand has 12-13 Leaves Terminate Date: One Week Prior to Harvest (Leaves Dead) GRASS HAY Start Date: Break Dormancy Cover Date: Heading Terminate Date: Killing Frost HOPS Start Date: Vine Growth Begins Cover Date: Top of Trellis Terminate Date: Vines and Leaves are Dead LAWN Start Date: Break Dormancy Cover Date: Full Canopy Terminate Date: 1st Killing Frost ONIONS/GARLIC Start Date: 100% Emergence Cover Date: 50% of Stand has 12-13 Leaves Terminate Date: One Week Prior to Harvest (Leaves Dead) PASTURE Start Date: Vegetative Growth Begins - About 2 Weeks Before Alfalfa Cover Date: Heading Terminate Date: 1st Killing Frost in the Fall (< 25 Deg F) PEARS Start Date: Full Bloom Cover Date: Full Canopy Terminate Date: 3-4 Weeks after Harvest PEAS Start Date: 100% Emergence Cover Date: Full Bloom Terminate Date: Leaves and Stems are Dead PEPPERMINT (NMPI) Start Date: Vegetative Growth Begins - Approx. 2 Weeks after Alfalfa Cover Date: Full Canopy Terminate Date: Harvest (Nampa terminate Date Is Dormancy) PEPPERMINT Start Date: Vegetative Growth Begins-Approx. 2 Weeks After Alfalfa Cover Date: Full Canopy Terminate Date: Harvest PEPPERMINT (OSU) Start Date: Vegetative Growth Begins-Approx. 2 Weeks After Alfalfa Cover Date: Full Canopy Terminate Date: Harvest PEPPERMINT (NEW) Start Date: Vegetative Growth Begins-Approx. 2 Weeks After Alfalfa Cover Date: Full Canopy Terminate Date: Harvest (Nampa terminate Date Is Dormancy) POPLAR 1 Start Date: Bud Break Cover Date: Full Leaf Terminate Date: Killing Frost POPLAR 2 Start Date: Bud Break Cover Date: Full Leaf Terminate Date: Killing Frost POPLAR 3+ Start Date: Bud Break Cover Date: Full Leaf Terminate Date: Killing Frost POTATOES Start Date: 100% Emergence Cover Date: Full Canopy Between Rows (in Good Areas of Field) Terminate Date: Vines are Dead POTATOES (SHEPODY) Start Date: 100% Emergence Cover Date: Full Canopy Between Rows (In Good Areas Of Field) Terminate Date: Vines Are Dead RAPE Start Date: 100% Emergence Cover Date: 50% Heading Terminate Date: Leaves & Stems are Dead SAFFLOWER Start Date: 100% Emergence Cover Date: 50% Heading Terminate Date: Leaves & Stems are Dead SPEARMINT Start Date: Break Dormancy Cover Date: Full Canopy Terminate Date: Harvest SPRING GRAIN Start Date: 100% Emergence Cover Date: 50% Heading Terminate Date: Leaves & Stems Are Dead STRAWBERRIES Start Date: Vegetative Growth Begins-Same Date As Alfalfa Cover Date: Full Bloom Terminate Date: 1st Killing Frost In Fall SUGAR BEETS Start Date: 100% Emergence Cover Date: Full Canopy Between Rows (In Good Areas Of Field) Terminate Date: Harvest TRAILING BERRIES Start Date: 1st Leaf Opens Cover Date: Full Bloom Terminate Date: Mid-October WINE GRAPES Start Date: Bud Break Cover Date: Full Canopy Terminate Date: Killing Frost WINTER GRAIN Start Date: Vegetative Growth Begins-Approx. 10 Days Before Alfalfa Cover Date: 50% Heading Terminate Date: Leaves & Stems Are DeadSee About Crop Water Use Charts for more information.