concrete planter molds

1. Are concrete planters bad for plants?
2. What kind of concrete do you use to make planters?
3. How thick should a concrete planter be?
4. What is stronger cement or concrete?
5. Should you put rocks at the bottom of a planter?
6. Can cement planters stay outside in winter?
7. Why are my cement pots cracking?
8. Can plants grow in concrete?
9. Which cement is best for making pots?
10. How long cure concrete planters?
11. What is the best material for outdoor planters?
12. Do concrete planters need drainage holes?
13. How do you make homemade concrete planters?
14. Can you pour concrete on dirt?
15. Is quikrete as good as concrete?
16. Can you pour cement in rain?
17. What can I put in the bottom of my planter for drainage?
18. What do you put at the bottom of a planter for drainage?
19. What can I put in the bottom of my indoor planter for drainage?

Are concrete planters bad for plants?

Most concrete planters that are purchased at stores are safe for any plants because they likely have gone through a leaching process and have been sealed. If you want to be safe, you can leach out the alkalinity by soaking the concrete planter in water for three days.

What kind of concrete do you use to make planters?

Fine concrete (topping or repair concrete)—standard concrete has gravel in it and these larger stones will affect the overall look of your DIY planters. Look for a smooth concrete made of sand and no large rocks, typically used to repair concrete or as a top coat for rough surfaces.

How thick should a concrete planter be?

1. The standard wall thickness cast for Form and Fiber's box concrete planters is as follows: - 3.0” Minimum wall thickness for planters up to 6'-0” L - 3.5” thickness for planters over 6'-0” L (72”) - 4.0” thickness for planters over 8'-0” L (96”), with manufacturer approval for overall size of box.

What is stronger cement or concrete?

Let's start with the basics: concrete is significantly stronger than cement. Cement is a durable material in its own right, but it simply does not compare to concrete. That's why cement is usually used for smaller, more decorative projects.

Should you put rocks at the bottom of a planter?

A layer of gravel at the bottom of a planting container was recommended for decades, even in published books about container plants. That erroneous advice may lead to root damage in plants. When gravel is at the bottom of a pot, it takes up room that otherwise soil would fill, making the pot much smaller for its plant.

Can cement planters stay outside in winter?

The cold won't affect them as much as summer's heat and moisture. Concrete is also a yawn-inducing container. Concrete can crack, especially if it is thin and wasn't conditioned properly when it was formed. ... Generally, if the pot is glazed inside and out, it won't absorb any moisture.

Why are my cement pots cracking?

The first and most common reason your concrete planter pot cracked is because the mix contained too much water. The more water that is in the mix, the better the chance that as it evaporates, the concrete will shrink. Concrete by nature will shrink, but the extra water can cause it to shrink too much or quickly.

Can plants grow in concrete?

Your concrete contains microscopic cracks invisible to the naked eye. Plants have new cell growth at the tips of their roots. ... Microscopic concrete cracks present this path for plants growing beneath your sidewalk. Once a plant's roots discover a microscopic crack in the concrete, they force their way into the slab.

Which cement is best for making pots?

QUIKRETE® Concrete Mix (No. 1101) is the original 4000 psi average compressive strength blend of Portland cement, sand, and gravel or stone. Just add water. Use for any general concrete work.

How long cure concrete planters?

Cover the containers with a plastic bag and allow three to four days for it to wet cure. Remove the plastic once daily during the curing period and lightly mist it with water from a spray bottle. This keeps the hypertufa wet for a longer period of time so the cement hardens better and the entire planter is strong.

What is the best material for outdoor planters?

Cedar is an ideal choice for wood planters because it's durable. This type of wood, however, can be costly. Planters with this material tend to also be high maintenance because you have to reseal them from time to time to extend their lifespan. They are likely to decay easily without proper maintenance.

Do concrete planters need drainage holes?

If you've ever been shopping for a planter, you know that options become limited because not every planter has a drain hole. One great example is our concrete vessel. ... But to keep that succulent alive, it needs a bed or rocks at the bottom and ideally a drainage hole for excess water.

How do you make homemade concrete planters?

Directions

1. In a bucket, combine concrete mix with water. ...
2. Find one bigger-size and one smaller-size plastic bowl or container to use together as a mold.
3. Spray the inside of larger container and the outside of smaller container generously with cooking spray oil.
4. Fill the larger container with the prepared concrete.

Can you pour concrete on dirt?

Long story short, yes you can pour concrete over dirt.

Is quikrete as good as concrete?

Quikrete Fast-Setting Concrete Mix is easy to use — just add water — and it sets in 20 to 40 minutes. It's the most efficient option for setting posts for things like mailboxes, fences and lamps. ... That's stronger than the concrete used for foundations on most homes.

Can you pour cement in rain?

Pouring concrete in the rain can compromise its strength, increasing the tendency for dusting and scaling to develop. Once the damage is done, it can be hard to rectify and will often ruin the appearance of the finished surface. Don't let it rain on your parade.

What can I put in the bottom of my planter for drainage?

Lightweight Filler for Pots

• Recycle Plastics. Plastic Water/Soda Bottles. ...
• Reuse Packing Materials. ...
• Unused Plastic Pots Turned Upside Down.
• Recycled Crushed Cans.
• Natural Materials. ...
• Recycled Cardboard, Newspaper (Also for short term use only.)

What do you put at the bottom of a planter for drainage?

Choose high-quality potting soil that is well draining. And if your plants need even more drainage, instead of putting gravel in the bottom of your pot, try mixing in perlite, PermaTill, or organic matter into your potting soil to increase drainage throughout the pot.

What can I put in the bottom of my indoor planter for drainage?

Create a drainage layer

A drainage layer is created by adding a medium such as pebbles, stones or pumace to the bottom of a pot before adding soil. Soil particles are very small and tightly packed together, which means that water moves through them quite slowly.