So I have a black thumb. Usually I don't care, but I do like fresh herbs in my food, particularly basil. Now that it's winter, grocery stores scarcely stock fresh herbs, so I've resorted to (trying to) growing my own. So far, I'm doing a terrible job.I bought this soil moisture meter to help me figure out why my basil plant was touch and go and seemingly really high maintenance. As soon as the meter came in the mail, I popped the package open and started reading. "Includes watering needs for over 150 plants!" Guess what? Not one of them is basil...or any herb, really. No parsley, oregano, etc. Frustrated, I took to the internet and found this pdf from Luster Leaf that had some additional plants and their watering needs listed. I've included them below. Note, below is not the entire list, just a smaller list of plants that seem to be left off the official Luster Leaf instructions included with the plant meter. Hint: 1st number is the "water number" (how wet it should be. Most plants here are between 2-5); 2nd number is how many days before you should check it again (most plants are ever 1-3 days); and the last number(s) are additional comments specific to that plant. See the key below the plant list for the key. Alyssum 5 3 3 Artichoke 4 3 2, 3 Asparagus 4 3 2, 3, 10 Azalea 5 2 2 Bamboo 5 2 2 Basil 4 1 2, 3 Bean 3 3 2, 3 Beet 4 3 2, 3 Broccoli 3 3 2, 3 Cabbage 4 3 2, 3 Camellia 5 2 3 Canna 4 3 2 Cauliflower 3 3 2, 3 Celery 5 3 2, 3 Chard 4 3 5, 10 Cilantro 5 3 3 Corn 3 3 2, 3 Cucumber 4 3 3, 10 Daffodil 5 1 Dahlia 5 1 9 Dianthus 3 2 Eggplant 4 3 10 Hydrangea 8 3 Impatiens 5 2 Iris 4 1 Lemon Balm 5 3 2 Lettuce 4 3 10 Lily 5 2 5 Marigold 4 2 8 Melon 4 1 2, 8 Mint 4 2 Mum 5 3 9 Onion 3 3 2, 3, 10 Oregano 3 1 5 Parsley 5 3 2, 3 Pea 5 3 2, 8 Peppers 3 3 2 Petunia 5 2 Pine 4 2 Potato 3 3 Primrose 5 3 Radish 3 3 3 Rhododendron 5 1 3 Rose 5 3 3, 10 Spinach 4 3 3, 8 Squash 4 3 3, 10 Strawberry 4 3 8, 10 Tomato 4 2 10 TuberBegonia 5 3 4 Tulip 4 1 Turnip 4 3 Watermelon 4 1 2, 8 Zinnia 2 2 8 Comment Key 1. Spray foliage daily 2. Never let soil dry out 3. Keep soil moist but never soggy 4. Keep soil wet at all times 5. Allow soil to dry between watering. 6. Soil should remain dry 4–5 days 7. Reduce watering during dormant period. 8. Water from beneath (in saucer.) Never wet foliage. 9. Water more and more frequently when temperatures are hot. 10. Water thoroughly. So, basil's water # shouldn't be higher than a 4, it should be checked daily, And the comments are to never let the soil dry out, keep it moist but not soggy. Guess how my basil was doing???? Yeah, it's bad. Hope this helps someone else!