BigBlonde
- 1,379
- 263
Hello,
We are new to indoor growing and have a problem. The leaves are yellowing badly on one of our plants and slightly on the other plant. Just about everything we've done regarding soil, water, light, etc. as been the same. The biggest difference between the plants is that the yellow plant is several weeks older. We've searched the web and talked with a grower friend and are confused by what we've found so far. We don't know the pH and could use some advice about how to test it. We suspect the most likely problem is the soil and/or the nutrients, but we're not even sure if we have too much or too little.
Our answers to the questions for soil growers are at the bottom of the post.
This the older plant and is the worst.
This plant is several weeks younger. There is slight yellowing.
Edit:
In a close-up picture, I noticed the points of the leaves have white tips.
Questions for Soil Growers:
1. Are you growing from seed or clones?
Seeds.
2. How old are your plants?
About two months. One is a few weeks older than the other.
3. How tall are your plants?
21” and 15” from the soil to the tops of the plants.
4. What size containers are they planted in?
10-gallon fabric grow bags
5. What is your soil mix?
We used MiracleGro potting soil. That may have been a mistake.
6. How often do you water and what type of water do you use?
We water daily and use tap water that has been in an open container for a day.
7. What is the pH of your water?
We don’t know and are trying to find out.
8. What kind of fertilizer do you use and what is its NPK ratio?
We’ve been using a water-soluble 18-18-21 fertilizer that’s marketed for vegetables.
9. Do you foliar feed or spray your plants with anything?
No.
10. What kind of lights do you use and how many watts combined? (HPS, MH, fluorescent, halogen, incandescent "plant lights")
We have a LED light: The Viparspectra XS2000. It has Samsung LM301B Diodes and is 240 Watts of power.
11. How close are your lights to the plants?
31" and 25" from the light to the tops of the plants. The light is at 90% power.
12. What size is your grow space in square feet?
We have a 48" x 48" x 80" Viparspectra enclosure.
13. What is the temperature and humidity in your grow space?
When the lights are on, the temperature is about 78F and the humidity is about 55%.
When the lights are off, the temperature is about 66F and the humidity is about 68%.
14. What is the pH of the soil?
We don’t know and need to learn how to test it.
15. Have you noticed any insect activity in your grow space?
No.
16. How much experience do you have growing?
We’ve grown outside a few times with good results. This is our first attempt at growing inside.
We are new to indoor growing and have a problem. The leaves are yellowing badly on one of our plants and slightly on the other plant. Just about everything we've done regarding soil, water, light, etc. as been the same. The biggest difference between the plants is that the yellow plant is several weeks older. We've searched the web and talked with a grower friend and are confused by what we've found so far. We don't know the pH and could use some advice about how to test it. We suspect the most likely problem is the soil and/or the nutrients, but we're not even sure if we have too much or too little.
Our answers to the questions for soil growers are at the bottom of the post.
This the older plant and is the worst.
This plant is several weeks younger. There is slight yellowing.
Edit:
In a close-up picture, I noticed the points of the leaves have white tips.
Questions for Soil Growers:
1. Are you growing from seed or clones?
Seeds.
2. How old are your plants?
About two months. One is a few weeks older than the other.
3. How tall are your plants?
21” and 15” from the soil to the tops of the plants.
4. What size containers are they planted in?
10-gallon fabric grow bags
5. What is your soil mix?
We used MiracleGro potting soil. That may have been a mistake.
6. How often do you water and what type of water do you use?
We water daily and use tap water that has been in an open container for a day.
7. What is the pH of your water?
We don’t know and are trying to find out.
8. What kind of fertilizer do you use and what is its NPK ratio?
We’ve been using a water-soluble 18-18-21 fertilizer that’s marketed for vegetables.
9. Do you foliar feed or spray your plants with anything?
No.
10. What kind of lights do you use and how many watts combined? (HPS, MH, fluorescent, halogen, incandescent "plant lights")
We have a LED light: The Viparspectra XS2000. It has Samsung LM301B Diodes and is 240 Watts of power.
11. How close are your lights to the plants?
31" and 25" from the light to the tops of the plants. The light is at 90% power.
12. What size is your grow space in square feet?
We have a 48" x 48" x 80" Viparspectra enclosure.
13. What is the temperature and humidity in your grow space?
When the lights are on, the temperature is about 78F and the humidity is about 55%.
When the lights are off, the temperature is about 66F and the humidity is about 68%.
14. What is the pH of the soil?
We don’t know and need to learn how to test it.
15. Have you noticed any insect activity in your grow space?
No.
16. How much experience do you have growing?
We’ve grown outside a few times with good results. This is our first attempt at growing inside.
Last edited:
dam good job there
